Taking a risk is not the same as being careless.
Some of you may be old enough to remember when BBs came in cardboard tubes. M80s and Silver Salutes were cardboard tubes filled with gunpowder. Boys being boys, sure, we married the two: If an M80 does this and a Silver Salute does that, what will a BB tube full of the contents of several of those do? (Then, there's that whole other bonus of all of those extra fuses . . . )
So, if you've never done anything like that, you may not want to use the flammables-bead-seating method. Once I learned of it, I couldn't wait for an opportunity to try it. It worked great. An extremely satisfying experience.
POOF! Done.
Just went easy on the flammables until the air/fuel mixture was right. Using a little as possible tends to limit the downside, you see. As does positioning yourself upwind.
From my perspective, never being willing to take a risk might make for a longer life. But, being close to dying is one of the few times you really, really, really appreciate living. If you don't know that feeling, I can't explain it to you. If you do, then you know exactly what I'm talking about.
Stay lucky, guys.