Sin

 A furious father is screaming at his daughter’s boyfriend.

Dad: "You son of a bitch! You got my daughter pregnant! If you were going to do that, couldn't you at least use a condom?" 

Boyfriend: "Well sir, to be honest, the Priest says using contraception is a sin." 

Dad: "A SIN?! Did the Priest forget to mention the part about 'Premarital Sex' being a sin too, you moron?"