Yeah - the "sensitive" portion is only the strike-anywhere tip (we've discussed match chemistry previously). One may "investigate" this by loading wooden matches into an ordinary BB gun and firing them at a concrete surface like a driveway or patio... strike-on-box will do NOTHING. Strike-anywhere will usually pop and/or ignite but ONLY if the angle is steep enough to get the tip to impact first. At an oblique angle, they just bounce away. Since I doubt that we can entice a match to abruptly slam into the top of a match safe carried on our person at 200-300 fps (for the curious, yes, I chrongraphed them - a large extreme spread on THAT ammo's velocity, LoL!) and live to tell about the sudden stop... I would not (and do not) worry about it. (60 mph is about 88 fps, IIRC, so 200 fps would be about 136 mph)<br><br>It was a darned good question, though.<br><br>I keep a cotton ball on top of the matches in my safes also, but it is only there because I find the rattle of loose matches annoying.

Here in Germany they only sell the all sensitive variety. So the friction between the heads can ignite the matches (yes, I tried this too). But it´s not easy to strike them that way. I also doubt that the matches will be ignited in the safe by friction or impact.

Looks like it would be useful, but I doubt I'd buy one. Why not?<br><br>I probably carry a bigger keychain than most, but I already have a Leatherman Micra, Photon 2, and (gasp) keys. I use a "decorative" carabiner (lots of companies give them out for free) so I can add and delete items as necessary. So, if I throw on the Mini Fox 40 (soon to be filed down) from my pack and the compass/themometer from my jacket, I'm almost there. Just have to add the P-38 and a "spy capsule".