I certainly wouldn't stare at it until it exploded. I would run away as fast as I could.

It's odd that you think the exclusive options are 1) do nothing; 2) pick up and throw away

Of course, it's extremely unlikely I'd be in any crowd with you. Because we are likely very far apart geographically. And I work to avoid any crowds that may involve flash bang grenades thrown into them. So far, I have an excellent success ratio and expect it to stay steady.

I think kids are seeing videos of people throwing these and, of course, only the successful videos make it to their feeds. As the unsuccessful ones are bloody enough to get filtered out.

Your comment seems a bit hostile and ill willed as there are many who become shell shocked in these situations and freeze up. This doesn't make it "morally bankrupt." It just makes them human.

Good luck with your moral high horse and being so superior. I hope you retain all your digits.