An old blind man walks into a lesbian bar, orders a beer and after a while says loudly:
"Did you hear the one about the stupid blonde ?"
The entire bar turns quiet in a second, and he hears a very angry voice:
"I'm a wrestling champion, and my girlfriend is a professional boxer.
Also with us are two karate experts, and a bodybuilder.
We're all blond ! Are you sure you want to tell that joke ?!?"
"No way! Not if I have to explain it five times....

:bleh: