This from what I understand and have seen is pretty bad with some bowlers. An older guy who had since calmed way down, I was told used to punch the lockers, throw chairs, kick the ball returns and do all kinds of other destructive things after making a poor shot or missing a spare.
Things like this were occurring at the center I bowl at about 5+ years ago. So, during our meeting, the bowling alley manager attened our meeting and address the entire league. He said, "Any bowler seen kicking the returns, punching the score console or defacing the alley property would have to miss the following week of bowling and would have to pay for any damage done to what they took their anger out on."
I tell you what, there were a few people having to miss bowling for a few weeks but finally, it helped "them" keep their anger in check.
Any other bowling centers you guys have bowled at ever have to go to these measures to "help" some bowlers out with their anger issues?