TL;DR (Too Long; Didn't Read) The dad in this feels guilty that he hasn't been spending enough time with his kid which is no excuse for letting him bully other kids. We want to believe our children are good. When we feel guilty about their negative behavior, we blame it on ourselves. We want to deflect any pain they might feel and take it on as though it is our burden, not theirs. In this case, the act of leniency one too many times had created a ripple effect causing pain. Don't feel guilty. You are not your child or more importantly your child is not you, but you are your child's guardian. You need to make sure this person blooms into a positive member of society, it is your responsibility to make sure they aren't assholes. So nurture them now and let them know when they're wrong, even if you've been wrong. We begin our story: The kid on first base gradually showed signs of frustration towards his teammate positioned at the pitcher’s mound. They we...