Ages ago, probably before I even joined here, I read about someone whose cell went supernova inside a light, and blew out the front glass and reflector, sending shards of glass into his leg/foot before he could toss it.

Odd, as I thought the tailswitch would blow first, being only a glorified rubber balloon on the end.

Anyway, it’s always possible. While it’s extremely rare to have an “incident” as such, it’s pretty much a given that most lights are basically “safe” pipe-bombs with a Li cell inside.

Then again, there are plenty of videos of phones and laptops ballooning and bursting into flames, too. But they’re plastic-walled and don’t send as much shrapnel in all directions like a flashlight or vaping-thing (whatever ya call ’em) can.