If you spend enough time 'out there" then statistically you'll get burned.at some point. I've had a few problems but, apart from one time, all have been repairable to get me home. Last close one was this Feb when I'd just completed a trip around Bute (done around 50 miles) and stopped on a beach to camp overnight.
I was walking around the back of the craft and noticed some pink drops on the skirt and thought, that's odd. Turned out that BOTH hose clips holding the main coolant hose under the engine had failed (I double-clip almost all coolant hoses for safety). The hose was still in place. held there only by the pipe bend pushing against the engine frame! If it come off then ALL of the coolant would have been instantly lost and the engine cooked within a minute or so. The clips were stainless (well. turned out not quite, the screw corroded away on one and the screw retainer on the other (neither bits were actually stainless!).
Turns out that double-clipping is only a good idea if you actually check on them regularly! Obviously, one had failed earlier and I hadn't noticed. Still, it shows that you can't rely on anything ultimately!