Honestly there's no safe method in gambling. All method has a high risk and didn't last long. The best thing you can do is stop if you win and withdraw it, only if you can do it(temptation).
Yes gambling can not be always safe unless you are extremely lucky. With your money in your pocket and your atm card with your wife, you are pretty safe i guess. If you once enter gambling, then you can not expect safe. Profit or loss, both are just the parts of gambling fun.
It is completely insane once you are entering into gambling and expecting the safety of your bankroll.
It is highly impossible to achieve to both fun and safe in gambling world. You need to sacrifice either one of these.
!
