The best strategy to escape being violent in gambling is wagering a small amount of money. But the money could accumulate if the player doesn't regulate the time spent in the game. Games like snooker are competitive and could make players lose time control.
I don't really like playing there in the pool hall, because it's very easy for problems to arise, especially when you're playing and drinking alcohol, even if it's just beers, sometimes the players have been playing for hours and it's very easy for them to look for problems, I've only been to places like that since I was a teenager, but since many people go there who might be looking for problems, I preferred not to go anymore, sometimes it's better to have a pool table at home to play whenever you want and become as expert as you can, but that's a matter of taste.