but i think OP is talking about Big Gains or wins as jackpot?because there is no way we can risk our lives with 400$ winning.
if we get the Lottery jackpot then for sure we must keep silent even in our own family,just act normal first and set things first before letting them know how much you have won.
We must keep our mouth shut, many people will have an interest on the money that we are earning it could risk our life. Having a low key life even we are winning will be our most priority above all. Also, I dont want to make somebody elses feels sad because they did not as lucky as I am.
and that will lead to greediness when people keeps thinking they are not lucky as we are,so it is better shutting our mouth in this kind of situation and besides instead of telling them your story why not Make some good moves that will help them in some good ways.
Like Hosting a raffle in your place that you will pretend that the prizes are from sponsors but the truth is you will shoulder all the expenses,isn't it much better of Tipping them than telling story about your winnings?
We must not talk about our big gains. The reason behind it is more or less the same as explained earlier. Most of the people think that you are trying to show off what you have earned. It is also possible that you become a suspect of an evil eye. So to keep yourself distanced from all these, one must not indulge in such activities of sharing their victories with others.