Sadism Puns

So the other day during a 20 minute break at University, some of my classmates got onto the discussion of relationships. One lad (to my suprise) ended things with his long term girlfriend, somebody asked why. To which he would only say:

"It just wasn't working."

A sudden rush of sadism crawled up me, and I couldn't bottle it up. I immediately blurted out:

"You know they have drugs that can help you with that."

I was met with both shocked looks or empty stares. Still, my mates had a laugh about it when I told them afterwards.