I have a sick sense of humor. When my friends are failing miserably at something, they often repeat the same things over and over again until they are fiery red with anger, and I cannot not laugh. I am really good at controlling myself, but this is often just too much.
Years ago, my brother was playing Hot Shots Golf for the Playstation 1 and at the time I was really good at it, and understood the frustrations of the game. Well he was really good for a while too, but he went a while without playing it, and when he started again he was failing miserably. When it came to timing the bar and lining it up to swing, he sliced it and the ball went way into the rough (more like the forest). His pattern of shittiness continued and I couldn't stop laughing at every swing he took (because it was direly terrible).
It got to the point that I knew he was going to screw up his swing and I would begin laughing before he even took it, and sometimes even just as he was changing his clubs, because I knew that the blunder was coming, followed by his rage. After an hour or so, he thought he'd get high to see if he played better, and he did (get high). It turned out he got even worse and became completely retarded at the game; choosing the wrong clubs, misjudging distances, and timing even worse.
All the while, I am laughing to the point that it is probably unhealthy (my stomach hurt and my face was tingling).
That's just one example. There are many more not involving video games.
Do any other INTJs share my humor? Why is this?