"Blonde Going To Electronic Store" joke

A blonde walks into a electronic store and asks the manager, "Can I buy that TV"
"No"
"Why not?"
"Because your a blonde."
So the blonde goes out and dyes her hair red. She returned to the electronic store and said, "Can I buy that TV?"
"No"
"Why not?"
"Your a blonde."
So the blonde goes and shaves her hair off and returns to the electronic store and says, "Can I buy that TV?"
"No"
"Why not?"
"You're a blonde"
"How can you tell I'm a blonde, I dyed my hair red, then shaved it off!"
"Because that's not a TV, that's a microwave!"