From the responses, it seems to be a basic characteristic of Freepers when young - they liked to experiment with things that go “boom!”
Took a while to set it off, then scared the hell out of us as it started shooting flame from both end with a hellacious noise. Amazing no one came to see what was up, but I think they were nervous about all the stuff we played with.
I had the ultimate progression, and have lived. I started with a firecracker in a soup can in water and ended with 150KT nuclear weapons. After that, I gave it a break! It just wasn’t the same anymore. ;-)