Freebsd Murphys Law

You can't fix it if it ain't broke.

First rule of intelligent tinkering:
        Save all the parts

Access holes will be 1/2" too small.
Holes that are the right size will be in the wrong place.

If it would be cheaper to buy a new unit, the company
will insist upon repairing the old one.

If it would be cheaper to repair the old one, the
company will insist on the latest model.

The primary function of the design engineer is to make
things difficult for the fabricator and impossible
for the serviceman.

That component of any circuit which has the shortest
service life will be placed in the least
accessible location.

Any circuit design must contain at least one part which
is obsolete, two parts which are unobtainable and three
parts which at still under development.

Important letters which contain no errors will develop
errors in the mail.

Office machines which function perfectly during normal
business hours will break down when you return to the
office at night to use them for personal business.