[rhino369]

Even ignoring that a driver is presumed to be more capable (licensed + an adult), driving into a lake is somewhat more obviously dangerous.

Everyone should know not to touch a live plug. But electricity is a more abstract concept and knowing whether the shock will kill you vs. merely stun is probably outside the common knowledge of most people. It's not entirely unreasonable to assume that if Amazon is telling you to touch a plug, that it's not going to horribly maim/kill you. It's dumb, but not so dumb that Amazon should escape liability for it.