Being a relative new ref, I had a U11 girls game yesterday. Long story short, it was a very hot day (mid-90's) and the coaches for both teams were subbing almost on every opportunity. It was late in the game (7 mins to play) and restart is a "red" team throw in. I hear the red coach scream sub, wave the player on and allow "white" to sub as well. For whatever reason, red coach decides to call the sub back even though player is on the field and not sub. I still allow white to sub to the dismay of red coach. Red coach is screaming at me, but I ignore her, and start play. Less then 30 secs later, I'm on the opposite end of the field from the benches, and it is a red throw again, coach screams sub, but red player restarts with throw before I truly heard the coach. This sends the coach out of control. She is screaming and throwing a tantrum. I give her a warning of "Coach, that is enough!' Lastly, to put the icing on the cake, with about 30 secs left and white up 3-0, white team fouls red just outside penalty area. I call direct free kick just outside of the 18, but of course, Red coach thinks it is inside the 18 and wants the penalty kick. Direct kick occurs, save and punt by the goalie, end of match. At the end of the match, when I am returning the coach's pass to red coach, she starts screaming at me about me favoring the other team because 1)i allowed them to sub when she didn't, 2)I didn't give her her sub on a hot, hot day (In her words, "I was intentionally fatiguing her players), and 3)I did not call a PK. My response was answering all 3 of her concerns by explaining the calls I made and that it is the judgement of the ref to allow a sub or not. I was sure that this would end it, but I was so wrong. Let's just say she went ballistic enough that all spectators on that field and the next heard. I decided to just walk away, and she started to use language that I would never, ever think of using in front of 10-11 girls and making direct insults to me. I walked back up to her and told her that although this game was important, it was "just a U11 game" and she should be embrassed by her reaction and actions, which lead to her just going nuts. I then just left the field, even though she was folowing and still wanting me to engage her. So, tell me what you would have done in this situation? I know I was wrong first for addressing her after the game. Second, I should have probably thrown her out of the game and asked her to leave the field. I think I didn't because I thought it was just a U11 game, and that she would understand her actions and just calm down after the warning. Was I wrong in thinking this? How do you deal with a coach that just doesn't stop?