The existence of warning labels is proof that Darwin was right, this sticky piece of paper keeps Americans from going extinct.
(Since most ACME props lack warning labels, the coyote has a pretty rough time.)
Warning label found on rat poison:
"Has been found to cause cancer in laboratory mice."
And another warning label on the rear-view mirror of a car:
"CAREFULL - Remember, objects in the mirror are actually behind you."
Prices shown in USD.