Yeah there's something that triggered them to push forward instead of following their set limitation, especially when you are in the losing side, when the amount that you use is something that you can't afford to let go, instead of calling for the day you'll top more money in hope that you'll be able to recover back that amount that you lose.
And most of the time, those kind of decision leads you to lose more and you find yourself regretting with that action that you made instead of following your limitation you push your way and go deeper.
Don’t be surprised because gambling itself is designed to make you trigger the longer you play. Games has house edge which means you will surely lose in the long run while we as person is prone to human error due to our emotions that’s why we always experiencing being triggered no matter what self-control we try.
Casino is expecting that gambler will commit mistake that’s why they never lose against player aside from the profit on house edge.