There's just a few basic rules. You're not going to curse me, and you're not going to stay out on the field too long. But that's about it. My all time favorite was Steve Palermo. I like umpires that put a lot of feeling, a lot of heart in it, that they have a good command of the game.
Every umpire has to be blessed with judgment.
He had great command of situations when he was in confrontations. He could be mild, or he could be hard, according to what he needed to be. A lot of players think mother's a half word. Horse manure would probably get you run out of a game. You make the wrong call, and when they come out to argue, why try to lie.