it might sound funny but i really feel like Tyson just got tired of hurting people... Even if you look at his early years every time he knocked somebody out it look like he felt really bad he would go over and pick them up and kissand hug them.. It was just that he finally found something that he was possibly the best ever at and was making money off of and finally getting love and acceptanced from people something he probably always wanted.. Being that he had come from the street and a broken home ... I feel like he just really didnt love boxing he was just gifted in it