One day a blonde went into a department ...
One day a blonde went into a department store.
She said to the owner, "Can I buy that T.V.?"
The owner replies, "No, you're a blonde".
Next day the blonde comes into the same shop with black hair and says, "Can I buy that T.V.?"
The shop keeper says "No, you're a blonde."
Next day the blonde comes in with pink hair and says, "Can I buy that T.V.?"
The owner says, "No, you're a blonde."
Then the blonde goes, "How do you know I'm blonde?"
He replies, "Because it's a microwave."