Made the mistake of talking about crypto in front if others.

I only talk to one co worker about it because we both can talk about it peacefully. Had another co worker over hear today and basically now wont let go and is just ranting about how it useless and never made any money and all you do is lose. Told him to check chart from exactly 1 year ago (December to December)... all he could talk about was April's ATH and the crash... a span of what... 3-4 months. Told me that s&p 500 is better and that will guarantee double return every 3-4 years. Guess I'll be more careful now because that was just annoying as fuck, not like I was trying to talk to him about crypto, I immediately said I'm gambling like I'm at a casino and love it and left it at that.