I wonder as I have never told a joke.
I’ve heard that most of them come from prison.
I would guess, if one is in prison, one would need a good sense of humor.
And a shiv, lol.
What is “shiv”?
A hand-made weapon used for stabbing. It’s a slang term that is usually used in prisons. It could be made from plastic like a comb or toothbrush or from a piece of metal.