Alright i've got one. A blonde walks into a electronics store and confronts the store salesman. "I would like to buy that tv over there." She points to a corner of the store and the salesman replies "I'm sorry ma'm, but we don't serve blondes. The next day the blonde comes back with her hair dyed burnet and confronts the salesman agian. "I would like to but that tv over there" and points to the same corner. Agian the salesman replies "I'm sorry ma'm, but we won't serve blondes." Angry, the blonde leaves the store and comes back the next day, with all her hair shaved off and confronts the salesman one last time. "I would like to buy that tv over there" The salesman looks at her and says "I'm sorry ma'm, but we don't serve blondes" Infuriated, the blonde yells at him. "I've been here three times, first with blonde hair, then burnet hair, now no hair at all and you still won't let me buy that tv over there! Why not?" The salesman looks at her and says "Ma'm, thats a microwave"