I had one the other week, where my opponent tried to claim the win as I made a long shot on the 8 close to the side rail and it hit the side rail before going in the pocket. Claimed I had banked it.I think the nit pickiness of bar rules are at least twofold.
I'd say it's probably 90/10 in favor of the first point.
- Players are trying to win on a technicality (i.e. made up, vague, and/or obscure rule)
- Since the price is per game, players are trying to extend the games to get their money's worth
For your second point, saying that you have to bank the 8 when there is a long line of people waiting to play on the table, is pretty obnoxious to the people waiting.