A blonde wearing a brown wig walks into a store and says to an employee, “I’d like to buy that TV.” The employee replies, “Sorry, I don’t sell TVs to blondes,” and the blonde leaves the store. The next day, the same blonde walks in wearing a red wig. She says, “I wish to buy that TV,” to which the employee replies again, “Sorry, I don’t sell TVs to blondes.” The blonde leaves the store. The next day, the same blonde walks into the store with her hair dyed black. She says, “I would like to buy that TV.” The employee replies again, “Sorry, I don’t sell TVs to blondes.” The blonde is totally confused and asks the man, “I’m sorry, but I’ve worn a red and brown wig, and now I dyed my hair black, how did you know I am a blonde?” “Well,” says the man, “that’s not a TV, it’s a microwave.”