Attacks by spirits
"Danny was the big man on campus. He was the meanest, toughest, most foul-mouthed boy on the ranch, and we all wanted to grow up and be just as tough and mean as he was. But he would kick us around, hit us, yell at us, force us to do his chores and things, just a very mean fellow, but one day Danny just changed, totally without any explanation, without any warning his life changed. His demeanor changed, his vocabulary changed everything about him, and nobody knew what had happened."