A woman walks into a drug store and asks the pharmacist for some arsenic. The pharmacist asks her "why do you want arsenic?" "I want to kill my husband because he is cheating on me." she replied. The pharamacist shakes his head and says. " I can't give you arsenic to kill your husband, even if he is cheating on you." The woman stares at him for a moment. She then reaches into her purse and pulls out a picture of her husband and the pharamcist's wife in bed making love, and hands it to him. The pharmacist looks at the picture and then looks at her and says. "I'm sorry I didn't know you had a prescription."