I teach my daughter (and practice myself) NEVER walk away without your fanny pack (contains survival gear) on, not even to go pee in the bushes...

Even after preaching that for years went on a canoe trip in the Boundary Waters area of Minnesota and left my fanny pack in the canoe while we got out to drag the canoe up some small rapids.

I slipped in knee deep water and soon as the water hit my flotation vest, I got swept down stream. My daughter (further down stream from me) fished me out with a paddle as I floated past her.

Didn't travel far at all, but how quickly I found myself out of control (except being able to turn myself around to fend off rocks with my feet), wet,and away from my gear with nothing but my minimal survival gear in my pockets (knives, multitool, lighter, magnesium block, compass, etc) scared the hell out of me. Now I NEVER (REALLY) take my fanny pack off.

Experience is a harsh teacher.