[Common ironic mutation of "preventive maintenance"] Actions performed upon a
machine at regularly scheduled intervals to ensure that the system remains in a
usable state. So called because it is all too often performed by a field servoid
who doesn't know what he is doing; such "maintenance" often *induces* problems,
or otherwise results in the machine's remaining in an *un*usable state for an
indeterminate amount of time. See also scratch monkey.
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