My advice is as much as possible never to borrow money to gamble unless it is borrowed for something else that might be more productive, even if you are pressured because you lose gambling, don't ever follow those emotions and passions, obviously that will lead us to bad behavior as gamblers, that's clear it will hurt ourselves later if we fail to pay it.
Lots of people end up in tragedy once they lose the money that they got from loans because that's when the time they realize they don't have anything anymore and they still have to pay for it. I once watched in the news that a man lost in a casino and brought some guns with him there and shot everyone randomly. This is what happens when you don't really care about playing with the money you borrow from others and don't have any means to pay it back once it is lost. That's why in order to be safe from such tragedy you need to consider the consequences.
That's right, if you gamble using borrowed money then of course you will feel a lot of pressure, especially in gambling it's 50-50 between winning and losing, meaning that it's neutral that no one can know when the win will come. It's too early to think about borrowing to gamble, are you too sure of victory? I think some of the people who end up making loans have a very wrong mindset, where they are too sure of all the wins and have too high expectations there. I hope all gamblers think normally if they don't want to crash in the end. Like the case you mentioned, one of them ended up having a mental breakdown so he did things he didn't expect. This happens because they are too dizzy with the circumstances or the downturn they experience as a result of gambling, they borrow to gamble and lose and vice versa they have nothing to replace the money they have borrowed. So the point is not to overdo it in gambling, gamble with reasonable conditions which are just for fun so you don't get too down in it.