A blind guy walks into a bar and taps his way up to the bar and orders a drink.
He says, "hey bartender. Do you want to hear a blond joke?".
The bartender repliers, "I don't think that's such a good idea. I am an ex professional boxer and I'm blond. The gentleman next to you is a professional wrestler, and his girlfriend is a body builder, and they're both blond. Are you sure you still want to tell that blond joke?".
The blind guy responds, "I guess not, I don't want to have to explain it 3 times".