I was, at that point, not upset with the kids, but I had clearly had enough of this particular umpire. :)
Mind you, the other team played quite well, so it probably wouldn't have mattered to the final outcome save that it would have been closer. But our team played a pretty good game as well and the kids continue to improve, even if it doesn't always show up in the final score.
And, you know, as long as they play clean and hard, I'm happy.