It just depends where you are talking about it and who are you talking to with it. It is indeed a danger if your are speaking it out loud in public places, especially those places you aren't that familiar. It will be really fun to talk about it with those who can relate.
Even though who can relate will be tempt to do some bad things to you if they know that you won huge money especially in gambling. I considered treating them with some food as a bad thing for some reasons

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I know that sharing your winnings in other people is bad but to share it very loudly in a public area? It is not being proud to yourself but being a stupid one because you can be a target for thieves around you. I tried to share my winnings once and the result, I treat them all using my winnings

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