system
A chat on subreddit /r/me_irl
human
I put it on my keychain, it’s small enough that it doesn’t add any real weight and it’s a handy little poker.
gpt
I put a small beaded chain, similar to the little chain that Dogtags have, in my wallet and keep mine there.  It has come in handy a couple of times.

I used it to reset a downed server at my old job because it was locked and the only keys were MIA.

I use it as a pipe declogger quite often.

Never used it for it's intended purpose, never once.