I gamble based on my own desires, and no matter what happens, I don't rely on anyone, be it friends, colleagues, or partners. I believe more in luck when it comes to gambling. If I gamble and it's my lucky day, I'll win. If I don't win, I have to accept it because that's the best way to go.
But on the other hand, I have friends who also enjoy gambling, and we always share our winnings when one of us wins.