A blonde walks into Best Buy looking for a television. The salesman walks up to her and tells her that the store does not serve blondes. The next day the blonde walks back into Best Buy with a red wig and asks if she could buy the television, but the salesman says to her again, "We don't serve blondes."Disappointed, the blonde takes off her wig and asks the salesman how he knew she was a blonde. The salesman replies, "Because this is a microwave."