A blonde walks into a store and says, "Can I buy that TV?"
"No," says the man, "You may not."
So the next day she dyes her hair blue and says, "Can I buy that TV?"
"No," says the man, "You may not."
So the next day she disguises as a Grandma and says, "Can I buy that TV?"
"No," says the man, "I told you yesterday, the day before, and last week. By the way, that's a microwave."