Two separate points: As a player and a coach, I always respected umpires who would actually explain situations/points to myself, teammates, and players. Zero tolerance for cursing. But now I see way too many messianic figures wearing blue, white, and red....Remember, you are being paid to make correct calls and to know the rules, not to get in a contest with 16 year-olds. If thier parent has failed to explain cursing is inappropriate, then I doubt if you can correct the situation with a public verbal beatdown.
Quaker and Bret-had an umpire threaten to toss an older gent last year who loves to scout pitchers. His sin-he had two seperate video cameras w/a laptop he was using to see the girls throw and chart the pitchs in the strike zone. Ump said he was just there to "...show him up....how dare you disrespect me...take it down or I WILL HAVE YOU ARRESTED..." This is before the game had even started. I do not personally know this man, he had a daughter who played for Mich. in the '80's I would guess, and I have seen him before at games, and found him to a great fan of the game and a gentleman. Now I suppose under the rule you quoted, the umpire had the right to bar the cameras. But I must say I cannot convey in a public forum my personal opinion of the umpire in question, and I would be all for eliminating this rule.