A very respectable looking lady walks into a pharmacy, looking directly into the pharmacists eyes she said "I would like some Cyanide please.
The Pharmacist was shocked. "Why do you wand cyanide" he said.
The lady replied "I want to kill my husband".
The Pharmacist was adament "I cannot do that madam, it is illegal to sell it to you, illegal to murder someone and we would both go to prison for many years.
The lady reached into her purse and pulled out a photo of the pharmacists wife in bed with her husband.
"Ahh" said the pharmacist "You didn't tell me that you had a prescription".