I still prefer not to talk about my major gambling profits because people will ruin it and easily make you lose it. I like to be cool and just tell a few people that they're so close to me that if they know later, they won't get upset. This is because people around you can have different reactions. For example, if you make a lot of money out of something they might be trying to steal it or change their opinion about you.
When the time I'm still gambling (I stopped already), I prefer not to share it to anybody because I don't want too.
I know that the ones who will share my gains in gambling will beg that I will treat them until all my winnings will go to them. One reason too that I don't want to share it is because I don't like that they will be addicted to gambling although I'm not addicted into it.