I'm with Paladin1 here.
A few years back, a senior E-5 at my command was talking about how his division's junior guy didn't know what a Phillip's head screwdriver was. Mind you, all mechanical rates in the submarine force (Auxiliary MM's, Torpedomen, Missile Technicans, and god help them, Nuclear MM's) go through a "Tools for Dummies" course as part of the pipeline.