I won't trust ANY single object with my life. My life is just too precious. That's why everything I use and do has some kind of back-up plan. That's how I ended up on these forums.

>>Get me out of trouble plan - cell phone, PLB, plan given to neighbor & family

>>Truck - 4WD, seat belts, air bags, lots of care

>>Navigation - map, compass, sun, north star, watch, GPS

>>Shelter - tent, tarp, plastic bags, truck, branches & debrees

>>Fire - lighter, sparker, folder, fixed blade, usually an axe when out camping, saw (of some size)

>>Water - Miox, pot to boil water in, sometimes a Hiker filter, usually have some bleach along

You get the idea.