Blonde joke

A Blond women comes into a store and says "I want that TV." The clerk says "Sorry no blonds can buy items here." The next day she dyed her hair brown and walks in again. She finds another clerk and says "I want that TV." "Sorry we don't sell things to blonds." "How did you know i was blond?" She tries again the next day with rainbow colored hair. She says again to a different clerk, "I want that TV." "Sorry no blonds can buy items at this store." "How did you know i was blond?" "Ma'am that's a microwave."