We have a field terrorist of a coach in CA that goes team to team causing trouble (hes presently in our area - hes been talked about a bit on hey bucket) and for awhile they were trying to keep umpires that had problems with him off of his games.. but when we ran out of said umpires, they had to start putting ones on him that could handle him and those usually had multiple run ins with him.
Now we are picking on him
He once told me he was contacting the ASA head office and I would never work again (I was kinda hoping that would take effect this weekend since it will be 104, the fair is in town, and all.. but no luck.).
He can literally disrupt an entire tourney if allowed too.