Probably the worst thing in this example is we are talking about ejecting a coach in a 9U game? That said, I usually will take a little behind the plate about select pitches. Certainly not going to take a constant questioning of my strike zone, nor allow the rule book or change places actions to happen without severe warning or ejection. The key is to establish control right away as I don't think many coaches in this type of division are interested in getting ejected. I have also found the occassional between inning private sidebar with the team manager (who may not be the coach in question) gets their attention about how the rest of the game is going to go and whether or not they want to be a part of it.