This is from Tom Vickery. I suppose it could fit in as well with any other occupation dealing with the public.

A very unattractive, nasty, loud, mean-acting woman walks into Wal-Mart with her two kids.

After the traditional Hello-and-Welcome-to-Wal-Mart, the Wal-Mart Greeter asks, “Are they twins?”

The woman says, “Hell no, the oldest one, he’s 9, and the younger one, she’s 7. Why? Do you think they really look alike?”

“Not really,” replied the Greeter, “I just can’t believe you got laid twice!”