Ben Franklin used to be a vegetarian.
Until, the story goes, his ship was becalmed and the sailors had to fish for their dinner. When they cut open a big cod they had caught, it was found to be full of smaller fish. He started eating meat.
ER's definition of salad:
"What you eat until the steak shows up."
ER's brother's definition of salad:
"It's not food, it's what food eats."