[OHBBREF]

Don't do conversations, if he has a question answer it succinctly and get out, if he just wants to rant we are done.
Explain early on to the coaches - "if you have a question coach, and you are calm about it we are willing to address it, otherwise we really do not need to interact"
I know too many officials that will carry on conversations with coaches about not getitng a call there or answer declaritive statements such as " he's reaching" or "get him off of him".
These are not questions there is no need to address them.
If you carry on a conversation with a coach about calls early in the game, and suddenly you aren't talking to him because he is being an a$$, now you are the one who is aloof, you are the problem, you shut him out and don't want to communicate.
Do not have conversations with coaches - answer questions succinctly and get out, they have 900 lines for people who want to talk.