A man walks into a pharmacy

A man walks into a pharmacy and asks the pharmacist,

“May I have a bottle of arsenic, please?” She is shocked.

“Why would you want something like that?”

The man calmly tells her, I want to poison my unfaithful wife and her lover.

The pharmacist is now horrified.

She said, “I can not possibly give you that.

It is completely illegal and I would lose my license and be prosecuted for conspiracy and murder!”

At this point the man hands the pharmacist a photo of his unfaithful wife having bed time with the pharmacist’s husband.

She examines it then looks up at him.

“Oh. I didn’t know you had a prescription.”