This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed. in which Twain described the coyote as "a long, slim, sick and sorry-looking skeleton" that is "a living, breathing allegory of Want. He is always hungry." Jones said he created the Coyote-Road Runner cartoons as a parody of traditional "cat and mouse" cartoons such as MGM 's Tom and Jerry , which Jones would work on as a director later in his career. The Coyote's name of Wile E. is a play on the word "wily." The "E" was said to stand for Ethelbert in one issue of a Looney Tunes comic book, but its writer had not intended it to be canon. This section possibly contains original research . Please improve it by verifying the claims made and adding inline citations . Statements consisting only of original research should be removed. Wile E. Coyote often obtains complex and ludicrous devices from a mail-order company, the fictitious Acme Corporation , which he hopes will help him catch the Road Runner. The devices invariably fail in improbable and spectacular ways. Whether this is result of operator error or faulty merchandise is debatable. The coyote usually ends up burnt to a crisp, squashed flat, or at the bottom of a canyon (some shorts show him suffering a combination of these fates). Occasionally Acme products do work quite well (e.g. the Dehydrated Boulders, Bat-Man Outfit, Rocket Sled, Jet Powered Roller Skates, or Earthquake Pills). In this case their success often works against the coyote. For example, the Dehydrated Boulder, upon hydration, becomes so large that it crushes him, or the Coyote finds out that the Earthquake Pills bottle label's fine print states that the pills aren’t effective on road runners, right after he swallows the whole bottle, thinking they're ineffective. Other times he uses items that are implausible, such as a superhero outfit, thinking he could fly wearing it. (He cannot.)How the coyote acquires these products without money is not explained until the 2003 movie Looney Tunes: Back in Action , in which he is shown to be an employee of Acme. In a Tiny Toon Adventures episode, Wile E. makes mention of his protégé Calamity Coyote possessing an unlimited Acme credit card account, which might serve as another possible explanation. Wile E. being a " beta tester " for Acme has been another suggested explanation. Wile E. also uses war equipment such as cannons, rocket launchers, grenades, and bayonets which are "generic", not Acme products. In a Cartoon Network commercial promoting Looney Tunes, they ask the Coyote why he insists on purchasing products from the Acme Corporation when all previous contraptions have backfired on him, to which the Coyote responds with a wooden sign (right after another item blows up in his face): "Good line of Credit."In Whoa, Be-Gone! , after successfully avoiding being hit by his own rocket, the coyote is run over by an "ACME" truck emerging from a tunnel.The company name was likely chosen for its irony (acme means the highest roadmap to genius free download point, as of achievement or development). Also, a company named ACME would have shown up in the first part of a telephone directory. Some people have said ACME comes from the common expansion A (or American) Company that Makes (or Making) Everything, a backronym of the word. The origin of the name might also be related to the Acme company that built a fine line of animation stands and optical printers; however, the most likely explanation is the Sears house brand called Acme that appeared in their ubiquitous early 1900s mail-order catalogues.In two Road Runner and Wile E. Coyote short films, Ajax (Disney) was used instead of Acme Corporation . In some others, the names "A-1" and "Ace" and "Fleet-Foot" are used. As in other cartoons, the Road Runner and the coyote follow the laws of cartoon physics . For example, the Road Runner has the ability to enter the painted image of a cave , while the coyote cannot (unless there is an opening through which he can fall). Sometimes, however, this is reversed, and the Road Runner can burst through a painting of a broken bridge and continue on his way, while the Coyote will instead enter the mirage painting and fall down the precipice of the cliff where the bridge is out. Sometimes the coyote is allowed to hang in midair until he realizes that he is about to plummet into a chasm (a process occasionally referred to elsewhere as Road-Runnering or a Wile E. Coyote moment). The coyote can overtake rocks (or cannons) which fall earlier than he does, and end up being squashed by them. If a chase sequence runs over the edge of a cliff, the Road Runner is not affected by gravity, whereas the Coyote will realize his error eventually and fall to the ground below. A chase sequence that happens upon railroad tracks inevitably results in the Coyote being run over by a train. If the Coyote uses an explosive (for instance, dynamite) that is triggered by a mechanism that is supposed to force the explosive in a forward motion toward its target, the actual mechanism itself will always shoot forward, leaving the explosive behind to detonate in the Coyote's face. Similarly, a complex apparatus that is supposed to propel an object like a boulder or steel ball forward, or trigger a trap, will not work on the Road Runner, but always will on the Coyote. For instance, the Road Runner can jump up and down on the trigger of a large animal trap and eat bird seed off from it, going completely unharmed and not setting off the trap; when the Coyote places the tiniest droplet of oil on the trigger, the trap snaps shut on him without fail. At certain times, the Coyote may don an exquisite Acme costume or propulsion device that briefly allows him to catch up to the Road Runner. This will always result in him losing track of his proximity to large cliffs or walls, and the Road Runner will dart around an extremely sharp turn on a cliff, but the Coyote will rocket right over the edge and fall to the ground.In his book Chuck Amuck: The Life and Times of an Animated Cartoonist,. "No outside force can harm the Coyote — only his own ineptitude or the failure of Acme products." Trains and trucks were the exception from time to time. "The Coyote could stop anytime — if he were not a fanatic. (Repeat: "A fanatic is one who redoubles his effort when he has forgotten his aim." — George Santayana ).". "No dialogue ever, except "beep-beep!"" This rule was violated in some cartoons such as in Zoom at the Top where the Coyote says the word "ouch" after he gets hurt in a bear trap. "The Road Runner must stay on the road — otherwise, logically, he would not be called Road Runner." This rule was broken in several shorts including cactus mines, cliff edges, mountain tops and railways. Wile E. Coyote has also unsuccessfully attempted to catch and eat Bugs Bunny in another series of cartoons. In these cartoons, the coyote takes on the guise of a self-described "super genius" and speaks with a smooth, generic upper-class accent provided by Mel Blanc . While he is incredibly intelligent, he is limited by technology and his own short-sighted arrogance, and is thus often easily outsmarted, a somewhat physical symbolism of "street smarts" besting "book smarts".In one short ( Hare-Breadth Hurry , 1963), Bugs — with the help of "speed pills" — even stands in for Road Runner, who has "sprained a giblet ", and carries out the duties of outsmarting the hungry scavenger. That is the only Bugs Bunny/Wile E. Coyote short in which the coyote does not speak, and to use the Wile E Coyote/Road Runner cartoon formula. As usual Wile E. Coyote ends up falling down a canyon and fails to catch and eat Bugs Bunny, much like how the coyote fails to catch and eat the Road Runner.In a later, made-for-TV short, which had a young Elmer Fudd chasing a young Bugs, Elmer also falls down a canyon. On the way down he is overtaken by Wile E. Coyote who shows a sign telling Elmer to get out of the way for someone who is more experienced in falling. In another series of Warner Bros. Looney Tunes cartoons, Chuck Jones used the character design (model sheets and personality) of Wile E. Coyote as " Ralph Wolf ". In this series, Ralph continually attempts to steal sheep from a flock being guarded by the eternally vigilant Sam Sheepdog. As with the Road Runner and Coyote series, Ralph Wolf uses all sorts of wild inventions and schemes to steal the sheep, but he is continually foiled by the sheepdog . In a move seen by many as a self-referential gag, Ralph Wolf continually tries to steal the sheep not because he is a fanatic (as Wile E. Coyote was), but because it is his job. In every cartoon, he and the sheepdog punch a timeclock, exchange pleasantries, go to work, take a lunch break, and clock out to go home for the day, all according to a factory-like blowing whistle. The most prominent difference between the coyote and the wolf , aside from their locales, is that Wile E. has a black nose and Ralph has a red nose. The arcade game was originally to have been a laserdisc -based title incorporating footage from the actual Road Runner cartoons. Atari eventually decided that the format was too unreliable (laserdisc-based games required a great deal of maintenance) and switched it to more conventional raster -based hardware. ^ Evanier, News from Me: " Mike Maltese had been occasionally writing the comics in semi-retirement before me, but when he dropped the 'semi' part, I got the job and that was one of the plots I came up with. For the record, the story was drawn by a terrific artist named Jack Manning, and Mr. Maltese complimented me on it. Still, I wouldn't take that as any official endorsement of the Coyote's middle name. If you want to say the Coyote's middle name is Ethelbert, fine. I mean, it's not like someone's going to suddenly whip out Wile E.'s actual birth certificate and yell, 'Aha! Here's incontrovertible proof!' But like I said, I never imagined anyone would take it as part of the official 'canon' of the character. If I had, I'd have said the 'E' stood for Evanier".