And it's hard to call them out because so much of it is already in the text, they can always claim they're just playing along. I remember a couple of Blood Elf /jokes:

"We're allies with the Tauren? Fantastic! We'll be having steak twice a week."

"So I was in the Undercity the other day and this Forsaken woman asks me if I want a facial. I said, 'You don't have a lower jaw, and you want to give me a facial?' HAHAHAHAHAHAHA!"