I had repaired a small generator in a boat. While waiting for engine to warm up, I noticed about 15 warning labels all over it. With time to kill, I started reading them.
Don't stick your fingers in the belts / pulleys.
Don't stick your fingers in the electrical terminals.
Don't stick your fingers in the hot coolant.
Don't stick your fingers on the hot exhaust manifold.
Don't stick your fingers in the diesel air intake. It could suck you in.
Don't pick up the generator. It is heavy.
Don't drink the anti-freeze.
Don't sniff the exhaust.
Don't eat the paint.
When they put that many stickers on something, I disregard all of them.
So far, I have thwarted natural selection using common sense.