The pharmacist asks, "What can I do for you, ma'am ?"

She says, "I'd like to buy some arsenic."

"Why do you want arsenic, if I may ask ?"

"My husband is cheating on me and I want to poison him."

I'm sorry", says the pharmacist, but I can't sell you the arsenic. I could lose my license and possibly go to jail for being an accomplice to murder."

Just then, the woman reaches into her purse and hands the pharmacist a picture of her husband and the pharmacist's wife, naked in bed together.

The pharmacist says, "Ohhhhhhhh . . . You didn't TELL me you had a prescription. Would you like the 4oz or the 8oz jar ?"