The thing is, you hope you never do have to use them out of a circumstance. I used to to have a friend with a jet boat and we ran the Main Salmon and Snake River almost every weekend for many years back in the late 70's. On 2 occasions we had engine problems and had to spend the night on remote locations. We did have some survival gear in the boat, but I was glad that the last time, I had my Model 18 stuffed with goodies. When ever I fly with some of my bush pilot friends, the 18 is on my belt. Hope I never have to use it, but it comforts me to know it's there.

Pap