Normally I don't brag my winnings to anybody. Because they will end up asking for a treat. There are times I told them and share with them the winnings especially to my family and friends. Gambling is not a profitable activity so normally people should not brag about it because if they start counting the money they gambled over the years they are still in the losing end.
So funny but it's true, when you win decent amount from gambling you are not willing to talk about it right away you want to stay away from anyone as you know that they will going to ask for some threat or some portions of that money. But after sometime, you will do and talk about your great experienced and share how lucky you are winning the bets.