A coat of Johnson's paste wax protects from the environment. A modicum of respect handles the rest.
Of course, some folks are just careless, and could screw up a ball bearing.

Democracy is not freedom. Democracy is two wolves and a lamb voting on what to eat for lunch. Freedom comes from the recognition of certain rights which may not be taken, not even by a 99% vote.
*Marvin Simkin* L.A. Times (1992)