People striking a match, wick lighter etc. in a dark place and they're surrounded by dozens, nay, hundreds of crates of trinitrotoluene sticks (Why'd they leave all those perfectly good explosives behind? Can't be cheap.). Then they freak out and blow out or turn off the flame. Yeah..., it's not going to blow up inside its crates just because you have a little flame on a tiny stick or on the end of a little metal box in your hand. Perhaps if you get your kicks by pouring kerosene oil on all those crates and setting them alight you could get the TNT to blow up.

Now for something that actually could happen, you strike a match or lighter in a subterranean coal mine and the suspended coal dust forms a fuel-air mixture and BLOOM!.

__________________
If we don't play god, who will?-James Watson
I never think of the future, it comes soon enough.-Albert Einstein
The large print giveth and the small print taketh away.-Tom Waits
Any sufficiently advanced technology is indistinguishable from a yo-yo.-Enoch Root, The Confusion
When I was a kid, if someone brandished a shrink gun he'd get a little bit of respect!-Myron Reducto, Harvey Birdman