People talking to you about crypto when they don't know that you know about it

Now I'm generally a reserved guy who has a simple rule that I follow: Don't talk about finances to anyone IRL. This includes how much I make, how much I spend, what I invest in etc... This especially holds true with crypto... And so, I will never bring up crypto investing when talking to people, because it just feels like the negative potential outcomes far exceed the positive ones. Now that's just my personality, so I find it really interesting when people will bring up crypto in conversation, especially when they have no idea that I know a little bit about it. Here's an example:

My wife and I were at a party and there was some guy there who was regaling everyone with stories about all of the crypto he had bought and sold over the years. Things like, "I got into doge in 2018 when it was fractions of a penny, but sold most of it when it hit one cent." I'm thinking, ok that sounds plausible. Everybody listening is very impressed, and saying "Oh thats so interesting" etc... after a few such stories I'm still keeping quiet and thinking hmmm, not sure if all of this is true, when he busts out this little gem: "I bought a pizza with BTC that would be worth millions of dollars now." This was my breaking point, and I had to say something... wow thats really interesting, that's kind of a famous story in the crypto world, so you were the guy who bought pizza for 10k btc in 2010?? He stopped, stammered and then said something along the lines of, "well no it wasn't me...it was my friend..."

Does this kind of thing happen to anyone else?