Black humor.
My dad came home from work once with a sad tale to tell about one of his long-time colleagues, who'd been hit by lightning that day on the golf course:
The storm blew up suddenly. He and his golf partner immediately decided to hop in the golf cart and call it a day. The lightning struck just before they reached the clubhouse. Apparently it entered through the top of the man's head and traveled straight down into the seat of the golf cart, because it blew his shorts off. Fortunately he lived through it, and had been taken to the emergency room to be checked out..
My mother and I started losing our composure at "the lightning blew his shorts off" and were laughing uncontrollably before he finished. Dad remonstrating with "This isn't funny, that could have been ME, you know" only made us laugh harder. We could both picture him staggering away from the golf cart, with his shorts smoking in front and missing in back.