To me, this seems like a very reckless and risky move. If your friend needed money, then gambling at a casino at that moment was extremely dangerous. What would have happened if he had lost? There are always plenty of other sources where you can obtain money, so to say that this person did the right thing is highly doubtful. Moreover, others will learn from such foolish actions, thinking that the miracle your friend prayed for will come to them, too. So, use your brain when you're on the brink of despair, and always consider both options, not just the good ones, but the bad ones as well.