Tilt

You raise pocket kings from the cutoff, the big blind calls, and the flop comes nine-four-two rainbow. You bet, get check-raised, and stack off with your overpair. The big blind flips 9-4 offsuit for two pair, having called out of position on a hunch. The money's in, and your kings are drawing very thin, about 8%, since a board pair would make you kings-up. Two hands later you pick up queens under the gun and, still stinging, jam 40 big blinds preflop instead of a standard raise, into a table that hasn't three-bet you all night. The cards didn't change the math on those queens. Your head did.

That swing is why tilt is the biggest leak in most players' games. A bad beat doesn't change your equity, but it can push you into bigger bluffs, thinner calls, and looser ranges than your game allows. Good regulars spot a tilted player within a few hands and adjust (three-betting lighter, calling down wider) because tilt turns a solid opponent into a predictable one. The beat costs you a stack. The tilt that follows can cost several more.

The common mistake is treating tilt as a mood to push through instead of a signal to stop. You try to get even in the same session, chasing the loss with more hands and bigger pots instead of leaving. The fix is simple: stand up and walk. But it only works if you catch the tilt before it catches your stack.