A guy walks into a bar and heads to a seat at the bar. He inquires of the bartender if he could tell a blonde joke. The bartender points out that, he/she is blonde, the biker girl to the right of the customer is blonde, the female to the left of the customer is blonde, as are the two women behind him. After pointing this out, the bartender asks if the customer still wants to tell his blonde joke.
To that question, the customer replies, "Well, heck no! If I have to explain it 5 times!"