A blond walks into an electrical store and says "I would like to buy that TV please."
The store clerk replies "I'm sorry, we don't do business with blonds."
So she stormed off back to her house and dyed her hair black. The next day,
she went back to the same store and said "I would like to buy that TV please."
The store clerk, once again, replies "sorry, we don't do business with
blonds."
The blond replied "how did you know I was blond?"
The clerk says "because that's not a TV, it's a microwave."