On a backpacking trip to Big Bend National Park a couple years ago, our group was sitting down to dinner. One person always took a set of matches in one of the orange coghlan containers, but I cannot remember if they were strike anywhere or REI micro torches. She took one match out and began screwing on the cap. When she screwed on the cap, one or more matches rubbed against the striker she had also stored in the same container. She didn't notice it had ignited and she screwed the cap tightly. Out of the corner of my eye I had noticed a small whiff of smoke. She was sitting across from me in a circle of us. A few seconds later she noticed the container was smoking and threw it into the middle of the circle. The container then BLEW..lol and neither the cap nor container were ever found.