A blind man and his guide dog enter a Bar and find their way to a bar
stool. After ordering a drink, and sitting there for a while, the blind
guy yells to the bartender, "Hey, you wanna hear a blonde joke?"

The bar immediately becomes absolutely quiet. In a husky, deep voice,
the woman next to him says, "Before you tell that joke, you should know
something. The bartender is blonde, the bouncer is blonde and I'm a 6'
tall, 200 lb. blonde with a black belt in karate. What's more, the
woman sitting next to me is blonde and she's a weight lifter. The lady to
your right is a blonde, and she's a pro wrestler.
Think about it seriously, Mister. You still wanna tell that joke?"

The blind guy thinks a moment and says, "Nah, not if I'm gonna have to
explain it five times."