It does end well for any gambler who thinks they can easily multiply their gambling money won through gambling more. I don't feel pity for those kinda people who allowed their greed to control them to gamble consistently without thinking of "what if" I gamble, and it didn't work as planned to win more.
That being said, this is a lesson to learn for those who think they can actually bet to win more without having a rethink about their actions that gambling losses are more than wins
Gambling isn't for profit making, because the casinos are out for business looking for your money. Do you think that casinos are dumb enough to be generous with their investment. This is why a gambler should think twice before he starts chasing his losses, so that he doesn't end up losing all his bankroll. Gamble for fun and enjoy the game without feeling cheated.