"Electrical Blonde"

A blonde walks in to a store she asks the salesman "How much for the T.V?" The sales person says "Madam we don't sell to blondes." The next day she colors her hair black then she goes back into the store and she asks again "How much for that T.V?" The sales man says "Madam we don't sell to blondes!" Upset her plan didn't work she "How do you know I'm a blonde?" The salesman replied " It's not a T.V. it's a microwave!"