I can think of at least one potential way a flashlight could come in handy for bear defense.
If you took a 6C or 6D
M@g-lite, uncapped the battery end, removed the batteries, and then:
1. - Collect some sulfur from nearby geothermal springs. (You're camping in Yellowstone for this exercise. Otherwise, you might have to have some packed.)
2. - Acquire some saltpeter from deposits of bird or bat guano found in local caves.
3. - Gather some charcoal from the remains of last nights campfire.
4. - Mix the chemicals in the appropriate proportions, pour a measured amount down the tube, use a torn patch of your preferably un-soiled underwear as wadding, and then use one of the batteries as an improvised projectile. A handful of loose AAA's, or even better, a bunch of LR44's can approximate buckshot.
5. - Rip the switch cover membrane off, to form a touch-hole. Prime with a small amount of the remaining chemical mixture, aim at the offending bear, and use a burning twig from the campfire to light.
Remember to hold the "M@gstet" (M@g + Musket) over your shoulder, bazooka style, as the switch, reflector and bulb were not designed to serve as a cannon breech plug, and are not likely to contain the back blast very well. I know this sounds very convoluted for using a flashlight for bear defense, but there are a few key points to consider.
- All things being equal, a
M@g's body tube makes a much better gun barrel than a length of alien bamboo of unkown quality.
- A bear is presumably not as smart as the Gorn captain. He won't even have a hand-made obsidian knife.
- Kirk only had diamond dust to work with as a carbon source, you had real charcoal, so quit your whining!
Assuming you survive, be sure to say "WHAT? SAY THAT AGAIN IN MY LEFT EAR!" a lot to the Metrons, I mean.. The Park Rangers, when they arrive to congratulate you on vanquishing the bear.
Otherwise, cribbing from the firearms communitie's bear advice, for bear defense flashlight, I'd recomend something like a Dorcy AAA, Jil-Lite, or Orb Raw. These smaller lights won't hurt as much when the bear swipes them from you and proceedes to shove them up your -