Tasteless Jokes: Men & Women: Woman walks into a pharmacy

A woman walks into a pharmacy and asks the pharmacist for some arsenic.

He asks, "What for?"

She says "I want to kill my husband."

He says "Sorry, I can't do that."

She then reaches inter her handbag a pulls out a photo of her husband in bed with the pharmacist's wife and hands it to him.

He looks over the photo and says, "You didn't tell me you had a prescription."