I have a close friend that was incensed about my explanation about how he was misunderstand. He even ran a broken simulation that showed he was right. When I co

I have a close friend that was incensed about my explanation about how he was misunderstand. He even ran a broken simulation that showed he was right. When I corrected his source code with detailed comments, he further accused me of trying to fool him and make fun of him. Didn't speak to me for a month. Bizarre. But I suppose this kind of thing that goes against instincts can really upset people.