We have a pretty good (as in personality) crew of APA players around here who are just in it for fun, so the bad ones aren't that bad compared to other areas where the leagues are bigger and have a larger variety of characters. But a few incidents where the d-bag quotient was pretty high...
1) APA 9-ball: A nortious jerk-wad captain puts together a mostly new team after his previous team got banned for a session a few years earlier and hadn't come back since. 2nd week of the session, he's short some low players for the evening so can't make skill-cap and would have to forfeit. So instead he gets one of his 7's to pretend to be a 2 to play to avoid a forfeit and for the win.
Luckily the hall owner, who knows everybody, caught that something wasn't right when they turned-in their scoresheet. He reviewed the security camera footage with the LO and figured it out... The captain is now banned for life, and the players are banned for a year. I haven't seen that captain around since.
2) Same captain as in 1, but his old team. He and a couple of his players light-up and start smoking inside the pool hall while in match and just ignore everybody staring at them and the opposition from the other team(politics aside, it's non-smoking in Cali and this place could lose it's liquor license as a penalty). To add icing onto the cake, he argues with the staff when closing-out because he doesn't want to pay for practice time because he thinks it's a rip-off (it's not). That's when he and team got banned for the rest of the session.
3) Not so much a move... My own team member walked out in the middle of a match because he claimed the other team was talking about him (they weren't). He didn't give them a chance to explain, didn't give me a chance to talk to them or talk with him, and didn't even tell me he was walking out until I came over and was asking what was going on. He just started packing and said he's not playing the match in a tantrum.
He sharked the second match we had going on as well. Several of my team members told me straight-up, if he stays on the team, they're leaving. I had to apologize for this BS to the other team, my team, the LO, and the other teams watching the stupid drama. So that was the last night he played on our team; he still hasn't apologized even after it was pointed out that he was mistaken (he doesn't even disagree that he was mistaken).
4) In my earlier days I played a player who wasn't watching my shot (she was seated behind me and I was between her and the balls, so she couldn't see half the table including my shot).
The next ball was 5 inches from the rail, with the higher balls surrounding the sides and the back half of the OB (I only had an almost head-on view of the ball with a slight opening to one side). I shoot a slightly off straight stop-shot (a stun) with some juice to get the cue ball to the cushion without it touching her balls, and stopping the OB when it hits a single ball full behind it. Now she has no view to the OB, and kicking it is very difficult for a level 5...
So after only seeing the result of the shot, not the shot itself, she calls foul, claims the balls couldn't have moved they way they did without hitting her balls first, and that she knows it's the case because she's taking a physics class (yes she really said that). I asserted myself several times, but then finally gave the CB to her and said take it. I just looked at my captain and told him, I'm still going to win.
I like this person overall, but that was such a d-bag moment; it happened before I knew them.
5) We were in a 9-ball tri-annual play-off (session end tournament) and the opposing team was keeping score for one of our two ongoing matches. Halfway through the match we checked the score, but it didn't seem to reflect what I saw in the match. So it seemed they were deliberately marking points for their team when they didn't actually make the points, of course they did this well enough so it was hard to prove without the two players being able to confirm the balls they made; and they were totally accurate going forward.
So it was clear the score was wrong, but we couldn't prove it. Of course, after talking with the captain of the previous team our opponent played, that captain had the same "feeling" as us. The bogus score wasn't what led to our losing, but it certainly could have.