I'll NEVER forget! The worst was during a rec league tournament and I called time out to "break" the other team's serve. The referee made the error and called our side to serve (one player can only get a max of five serves in rec league). A parent (other team) yelled at the ref about it. I didn't realize what was happening so I asked the parent what was wrong and he ignored me and kept screaming at the ref. The other team's coach and I discussed it and I agreed that the other team had one more serve. However, the parent got so beligerent he got up from the stands to approach the ref. The ref refused to change his call (despite our pleads) because of the parent's behavior. The man almost jumped the ref stand! The poor kids (they were 8-9 YEAR OLDS!!!!!) started crying on both teams, my girls ran behind me. My parents (well trained) kept to themselves, but were ready to grab their kids and leave. Security was called and the parent was escorted out of the building. The other coach and I were floored! Needless to say the other team couldn't get it together to play and we killed them. The ref had police protection to his car, and three years later, I'm coaching his daughter in club! We're just starting so wish me luck!!!