Wile E. Coyote would be hunting Roadrunner and, not noticing Quicksilver was there, drop an anvil on him. After removing the anvil from on top of him, Wile E. wouldn't notice that he hadn't killed the Roadrunner because the remains were too disfigured. Wile E. would then proceed to eat Quicksilver, then cough up underpants and regurgitate.