Mel Blanc's doctor

His methods may have been unconventional, sure, but holy crap, they work!!

From Mel Blanc's IMDB biography:

=====

While in a coma after a cataclysmic automobile accident, doctors unsuccessfully tried to get Mel to talk. Finally, a doctor, who was also a fan of his cartoon characters, asked Mel, "Bugs? Bugs Bunny? Are you there?". Mel responded, in Bugs Bunny's voice, "What's up, Doc?" After talking with several other "characters", the doctors eventually led Mel out of his coma.

=====

Gotta wonder if the doctor tried asking that question with all of his other coma patients.