Ha, I can do one better...
Eons ago I was playing in a local bar and was getting all my buddies drunk from my spoils, while following those ridiculous rules were speaking of. Until a new guy puts his coin on the table and gets his turn. The game unfolds pretty much the same as the dozens prior. However once I get down to the 8ball and I call the pocket, with how many banks it will take, and the ball it will carom off of that's mostly blocking pocket. He speaks up and says:
** "You can't do that."
-- "Do what?", I retort.
** "You can't make the 8ball by hitting it off of one of mine"
-- "Whatever man, that's not a rule I've ever heard of. If I call it, it's good. This is the shot I'm going to play"
** "It's a house rule, and if you shoot it like that, you lose"
-- "Oh so you're telling me the owner made up that rule?"
** "Yep"
--"Ok fine I'll ask him. Is he here..?"
** "You're looking at him"
I placed my cue on the table, shook his hand and asked what he was drinking. (He didn't accept the drink)
The moral of the story.... Those ridiculous rules were put in place so those who hate losing to better players have a better chance at stealing a game or two. I experienced the real-time invention of one of these rules, in an effort to get me off the table so his regulars would be happy. In invention, these silly rules are no different then how the rules of mainstream 10ball comically address all the things the whiners hate about 9ball.
Is what it is... Enjoy it. This is the stuff that keeps pool interesting