I've seen tons of folks with "heart" that don't know how to manage their bankroll. Heart does nothing for you, if you are sitting on the bar stool with no money in your pocket.
I am one of those odd folks who loves to play pool. Winning all of somebody's money wasn't always my first objective right off the bat. My objective was to win and stretch it out into long matches. As long as I had a good profit at the end of the night, I was content. If I knew somebody only had a couple hundred dollars, I would keep the bet lower so that they couldn't get lucky and win all of my money while I was chasing their two hundred. It is stupid to risk losing more money than the other player has or can come up with.
In 90% of the matches I played like that, I always outgunned them and left with their money. It may have taken a bit longer, but the outcome normally was in my favor. Most of the time I played in places where I didn't know anyone and I was alone. Walking into those places and throwing bunches of money on the table right off the bat was asking to get robbed.
I got partially robbed down in Biloxi many years ago when I was playing the owner of a Gulfport pool hall in his brother's bar. I went into the place about 8 PM on a Friday night and challenged the money table and they asked me, "you know we are playing 9-ball for money don't you?" And I said, "okay" and then took my turn when my quarter came up. Next thing I know, the bar is closed and we are still playing ten hours later and I'm alone and have everybody in the bar's money...probably close to a thousand dollars. The pool hall owner then went into the back of the bar and came out with a paper bag full of jewelry and wanted to put the jewelry up against the cash I had.
I told them, "I'm not a jeweler and I am only playing for money or I'm out of here". The guy went somewhere and borrowed some cash and we played some more. A couple hours later, I had all of that, too. That is when the fight started. LOL. I can laugh now, but it wasn't funny at the time.
I leaned over the table and shot in a 9 and, the next thing I know, the guy and his redneck buddies still inside the bar decided to back jump me. After getting slugged a few times, I managed to get out the door, but I had left several hundred dollars still laying on the table that I was sitting at. I was glad I was using a house cue because I didn't have time to be grabbing anything while I was hauling ass out the door.
I always used my own money and went into joints that the average person may be afraid to go into and gamble alone. I never tried to "hustle" anyone (play below my speed). I played "balls to the wall" from the first game to the last...the best I could. I think that kept me from getting into more trouble than I sometimes wound up with. If they asked me how well I played, I would tell them that I thought I would win and leave it at that. If you didn't think you were going to win, why would you even be playing?
If I ever got behind, I would play for days if I thought I could win. That is where money management comes into play. I would always have enough cash that I could afford to play for a lot of games before you were going to get all of my money. I've came back from 15 or 20 games down and then busted them. Some people just want to gamble and get it over with...win or lose. My objective was to win and if I only had the majority of your cash, and not all of it, when you quit, that was fine with me. I'd pack up and go find another place and start all over.