I always manage bankroll to never defeat but after losing some game by most unbelievable ways - likely you can lose and then.....
Whenever this happens i just lose control then using bankroll madly with bigger buy in and allin, more aggressive, bluffing.. sometimes back to zero
What you do for this situation?
This is one way to go broke very fast! losing over and over again, whether from Bad Beats or suck-outs is a quick way to Disaster if you start to "Tilt", The important thing to do is STOP! give the game a rest and come back in a better frame of mind a day or two later.
Never play when in a bad mood, If you have had an argument with a partner or your boss, staying clear from the tables is definitely the best option, and as most players will tell you Bank-roll management is very Paramount.
You have to set yourself limits, and stick to them religiously, I once told a friend I was playing a bankroll of $150 and he said if he had that much he would be buying into $50 games and try to win big, I said no thanks, I am happy playing $1 SnGs and winning small but regularly.
My way I could lose 10 games but still have enough to come back a day or two later and win that £10 back, His way was 3 strikes and it's Game Over! There are lots of stories of Players coming from a satellite game or free-roll and winning huge tournaments for Hundreds of Thousands of Dollars, It's true but you have to remember for every winner there are thousands of loser's, I just don't want to be one of them.
When the fun Stops, STOP!