When I lose, I stop or take a break once I reach my set budget for gambling. I don't have a habit of chasing losses, I only gamble with what I can afford to lose so it will not affect me financially. And when I win or recover my losses from winning, I also stop or take a break and don't gamble all my winnings and expect to win more, because if I do, it will only result in losses. It's very important to learn or know when to stop, it will not only help you financially but also help you have a good habit and practice responsible gambling.
A good step in an effort to prevent ourselves from even greater losses. Because what I feel when I lose, this can really make me more curious about gambling, and if I don't have self-control and emotions, maybe I will spend the balance I have every time I gamble. A stupid thing, but I've done that. This can happen because sometimes when we lose, our emotions become clouded, we no longer care about how much money we have spent, because the most important thing is how we can continue gambling and placing bets to win to recover from previous losses. And therefore, to prevent losing control over the gambling that I do, I always ask my close friends to accompany me when gambling, I do this so that when my emotions run away and lose control, I have a friend to remind me. Even though when I win I have to give him a small share, to prevent the loss of the winnings that have been obtained and even bigger losses in gambling, I need him to accompany me when gambling.
You've got a nice strategy here, some people also let their closest family member have double signatory to their account. This helps the gamble not to withdraw money recklessly while gambling. He'd have to explain to the person with the next signature the reason for taking money before he'd get another withdrawal. Hence, someone watches over the gambler and endeavors he doesn't make silly mistakes. Strategies like yours works perfectly fine, and the gambler would always stay safeguarded by his friend, who would watch over him. However, if the person is not a gambler, it's also important that the gambler endlessly reminds his friend not to try gambling. It could be dangerous on both parties, because if he engages into gambling, he could not perform is policing work perfectly good anymore. Is your friend also a gambler?