Yes, always have a fire plan in mind when starting a lithium battery project. They go up very quickly and generate a ton of choking smoke. It only takes one oopsie with a screwdriver or dropping a cell to start a fire.

I was working on an LED project that involved some reasonably-sized lithium batteries, and the guy in the hardware store said "I don't want to hear about you in the news tomorrow". That really stuck with me, and I say it sometimes when I think someone's going to do something dangerous.

I was just looking for the comment telling me this is _probably_ a bad idea, so thanks!