I saw that occur in a WB cartoon called "Chow Hound", most memorable
for the bullying dog repeatedly berating a cat with "What! No gravy?!
Next time remember the gravy!" I just saw that cartoon on You-Tube
about a week ago!
The same gag, however, also occurred in one of the original Tasmanian
Devil cartoons. Bugs Bunny gives the Tasmanian devil a fake turkey or
chicken consisting entirely of TNT. The tasmanian devil eats it up,
and says "Pardon" when it explodes in his belly.
P.S. Thanks for posting on-topic. I'd like to see this newsgroup come
back to life, and every on-topic post helps.