Just found out my boss has had a vasectomy, how to take the p1ss...

Knock his wife up?

Obviously she has to be in on the joke, otherwise it's just rape, and that's not funny.

Brilliant Ken.

The vasectomy song

https://www.youtube.com/watch?v=yjiAq89cy6w

While doing a vasectomy, the doctor slipped and cut off one of the man’s balls. To avoid a huge malpractice suit, he decided to replace the missing ball with an onion.

Several weeks later, the patient returned for a checkup. “How’s your sex life?” the doctor asked. “Pretty good, but I’ve had some strange side effects.”

“Like what?” the doctor asked anxiously.

“Well, every time I piss my eyes water. When my wife gives me a **** she gets heartburn. And every time I pass a hotdog stand, I get a hard-on.”

Good luck in your next job.

Anytime someone get's a bit p1ssed off gonna say "alright mate, don't get all testy".  Should be hilarious.

Castration's nothing like a vasectomy, there's a vas deferens between them.

(c) me, ten years ago

Two Victoria plums in a wet paper bag left on his desk. Hilarity ensues.