I laugh quite a bit. Rather enjoy laughing in fact.
Sometimes I just start chortling out of nowhere I think of something riotous and yes, I laugh at things other people think are inappropriate. I remember one time at work. There was a SME (subject matter expert) I was working with while designing a new system. She was a large lady. Not just rubenseque, or even American fat. She was easily over four bills, had a special pedestal stand chair because she had broken several regular computer chairs. While I worked with her, she drank full-sugar cola. Four or five liters a day, plus a couple bags of chips, and lunch. So one day she was getting frustrated, and she belts out, "You don't understand, it's hard for me to remember things, I'm diabetic!"
Well, I started laughing, and it kept rolling, into somewhat of a manic, uncontrollable hysteria. She told me to stop, got offended, and left to get her boss. I couldn't help it.
It was really funny to me, not just because of her self-destructive lifestyle, but because I am (and was at that time too) so much sicker than her. I still had my colon then and had barely controllable ulcerative colitis. Less than a year before I'd spent five weeks hospitalized with first hepatic pancreatitis (which is both hepatitis and pancreatitis at the same time) which evolved into bile perontinitus after a percataneous tube was withdrawn from my heavily fibrosised liver, which then began leaking bile into my abdomen. So I'm laughing my ass off because she thinks her biggest problem is life is that she has obesity driven diabetes - AND here I am, building a computer system that will replace her, in constant pain, with a newborn baby at home, taking grad school night classes, sprinting to the bathroom a dozen times a day, never sleeping more than 120 minutes in a row, with monthly blood tests watching for liver cancer and my MELD score and a perc tube draining bile out of my blocked gall bladder into a bag taped to my ribcage. At least I didn't have encephalopathy at that time, nor my NALF or Cushing Syndrome, all of which evolved later.
Oh normal people. How I wish I could have a life where I was allowed to make bad decisions. Being AS keeps me alive. When one of your all-consuming focuses is personal survival, you study the system and figure out how to beat the odds.