"I've had it with my wife." said the one drinking buddy to the other. "I'm filing for an divorce."
"Sorry to hear that pal." said his partner. "May I ask why?"
"I found her supply of birth control pills." said the first.
"Listen Frank, with all due respect to your religion, I just can't see leaving your wife for what the Church says is a sin."
"It ain't just that." stormed Frank. "I had a vasectomy over five years ago."