https://www.reddit.com/r/IAmA/comments/1ch7wb/starting_with_almost_nothing_i_made_almost_500000/
In short version, he gambled on Bitcoin, made $500,000 - and lost it all later on, he then continued to gamble in Roulette and other games, and ended up with $50,000 in debt.
Hey these things happens in stock trading too, people let their greed get better of them its basic human nature. I feel many gamblers know when when to start, but when it comes to pulling out they are clueless, they let their greed guide them and end up loosing. In my personal experience when I'm playing sometimes the gambling gets to me, even the risk of having debts doesn't scare me, and it's taken years of practice to quell my desire to stop when I'm ahead.