USGI (or similar) insect repellant. That bug juice, if squirted into a puddle, will put a match out. But squirt it on your tinder, touch a match to it, and whoof!
I recently watched a movie where the western hero, needing a fire badly, pulled the bullet from a cartridge, placed the case, powder still in it, on the ground, open end pointed at a tinder pile. While holding the cartridge stationary, he put a sharp object against the primer, when whacked it with something heavy. Primer ignited powder, powder ignited tinder. Anyone ever tried this???
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OBG