Two sticks of asparagus are walking down the street. One gets hit by a car and is rushed to the hospital. After performing surgery, the doctor comes out and tells the other asparagus, "I have good news and bad news. The good news is, your friend will live. The bad news is, he'll be a vegetable for the rest of his life."
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Explanation Please! - Of course we eat vegetables, but when a person is in a vegetative state it means they are in a coma, and the slang for this is "a vegetable". (It's not very sensitive though.)