A blond goes to radioshak to buy a t.v. She says, "I want that t.v."

The worker says "I dont sell to blonds." So she goes back home and dyes her hair and comes back and says "I want that t.v."

He says "I dont sell to blondes." So she gets a makeover and says "I want that t.v." and the worker again says "I don't sell to blondes!"

Finally getting tired of it the blonde asks, "How do you know i am a blond?"

The worker replies, "because that is a microwave."