Hate working teams like this?

[SanDiegoSteve]

Well, he'd have to be a purty big feller to lay me out, and be able to take a punch, too. Maybe the little guys out there would have to worry about that.

I wouldn't let the guy work with me, plain and simple. If a firm "no, you ain't working with me" doesn't work, and the jerk wants to come onto the field, he can umpire the game by himself. I would at the very least go to my car and immediately inform my assignor.

Like I said, I would tell the guy to go get his uniform, and then come back.