At a blackjack table, you see some moron doing stuff like hitting on 17 and staying on 15. It can really piss you off. Especially when they are sitting in the last spot, before the dealer. You find yourself watching them closely and thinking they are affecting the flow of the cards
Or you are playing craps and you get annoyed at the guy who craps out, or the guy who bets on the don’t pass line.
Or in a game of poker, you get go on tilt from the guy who beat you in a pot with 7,2
These people make no difference to the outcome of your bet.
Blackjack: it is you against the dealer. In actuality it doesn’t matter what the guy next to you hits and stays on. You fail to notice the time he stayed on 12 and you won because of it.
Craps: There is no such thing as a good or bad shooter. Lucky shooters don’t actually exist and there is very little proof of controlled dice shooting under casino conditions.
And don’t worry about the guy who bets on the don’t pass line. Mathematically he is actually making the smarter bet, but it’s only very marginal.
Poker: You want these people at your taable. You may lose a small pot or two, but in general they will pay you off in the big pots
You only ever remember when another players incorrect play loses you money.
You rarely notice when their mistakes cause you to win.
Play your game and let the bad players play theirs.
9 out of 10 times it doesn’t affect your results, so why let it bother you.
Take solace in the fact that in the long run you will win more than them.