Here's one of the things I've learned in my 10+ years as an adult involved in baseball. It doesn't matter what level I've coached or played on (high school, college, adult) a lot of guys just look for stupid things their opponent does to get pissy about. Slid too hard, pitched too close to me, swung at a 3-0 pitch up by a lot, bunted when you shouldn't have, played too hard, was too excited about doing something good, stole a base when you shouldn't have, didn't wear your hat the right way, and those are just things I can remember right now. I've never really been involved in any other sport before so maybe this is common but it's happened countless times that I've shook my head in disbelief because a team I was coaching or playing against was so upset because of something so minor.