Your going to get 10,000 different answers for this one. I have a dark sense of humor, and my friends understand and get it. My rule of thumb- don’t laugh at people when they’re embrassed unless you really, really know them.
Even so,this is a subjective topic…there is not a black or white answer.
Exactly.
Blatently racist, sexist or crude jokes and the like would seem to be off limits, but even there some latitude exists i.e. blonde jokes, unless someone actually thinks that the color of one’s hair is indicative of their intelligence.
A good friend of mine and I were cutting up a metal I-beam and a bit of molten slag dropped down his sock. He’s about 6-5 and 340 or so but was jumping around pretty well for a big man. I nearly wet myself laughing; he wasn’t seriously injured and we both laugh about it today. If it were a stranger, it still would have been funny in a slapstick sort of way, but I would not have laughed out loud, not knowing how they would take it.
I also gave a smile when I saw a referee at a lacrosse game rolling around on the ground and screaming…I thought he was playing around until someone said he took an errant shot to the side of the head.

Yikes. Fortunately, he didn’t get a concussion and was OK.
I’m of the opinion that it’s a “guy thing” to find a certain amount of pain in the right circumstances mildly to wildly humerous. Look at all the “groin shot” videos that end up on America’s funniest videos and other shows. The key, methinks, is to be able to recognize the difference between momentary pain and injury. Injury is never funny.
As well, there are times when things just strike one as funny. Several years ago in mass, there were two identical twins…maybe 35-40 years old (I’m a lousy judge of age) and they sat in the second row, next to each other and about 5 rows in front of us. They were identically dressed, suit, vest, tie and wore the same style of glasses. They looked like mirror images of each other.
They were also at least 6-11 or seven feet tall. No exaggeration. We have chairs that hook together and they had to unhook them and move them apart to be able to sit next to each other.
We saw none of the mass, and those who sat in the rows just behind them saw this wall of grey cloth; twin towers of well-tailored suits.
It was surreal, and we couldn’t help but have to stifle a giggle throughout mass.
Sometimes one cannot help what strikes one as funny.