Parts Unknown host and world traveller Anthony Bourdain is as adventurous an eater as anyone. He has tried still-beating cobra heart in Ho Chi Minh City and seal eyeballs in Quebec. He will eat almost anything. The exception: airplane food.
From an interview with Bon Appétit magazine:
Do you eat the plane food? Never. No one has ever felt better after eating plane food. I think people only eat it because they’re bored. I don’t eat on planes. I like to arrive hungry.
Everyone has a limit. Read the rest of the interview here (it’s a good one with numerous nice travel tips).