Here's one I heard on from a comedian on the comedy channel, and it applies to me cuz I ended up the only natural blonde in my family.....

There's a guy talking to his friend, who comments that he neither looks like any of his siblings, nor his father for that matter. "Must have been the milkman" he says with a wink.

The guy replies, insulted, "So not only are you saying my mother is a tramp, but she whore's around with men who have jobs that don't even exist anymore?"

I don't know, I thought it was funny, because people still say crap like that.