I think, for open bowlers anyway, the culprit is the automatic scoring system!
In the "good ole days" when we had to use a pencil and a score sheet, simple rules and bowling etiquette was printed on the score sheet and we never had any problems.
This should never happen in leagues, though. Don't you guys have a league officer called a "Sergeant at Arms" or something like that? Maybe enforcing the rules is his job?
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I've upped my average, so up yours!