A veterinarian was feeling ill and went to see her doctor. The
doctor asked her all the usual questions, about symptoms, how long had
they been occurring, etc., when she interrupted him: "Hey look, I'm a
vet - I don't need to ask my patients these kind of questions: I can
tell what's wrong just by looking. Why can't you?" The doctor
nodded, looked her up and down, wrote out a prescription, and handed
it to her and said, "There you are. Of course, if *that* doesn't
work, we'll have to have you put down."