Related:

• A purchased component or instrument will meet its specs long enough, and only long enough, to pass incoming inspection.
• A failure will not appear until the unit has passed final inspection.
  -- Klipstein's Sixth Law of Productio...
• A fail-safe circuit will destroy others. -- Klipstein's Fourth Law of Productio
• After assembly of an instrument, extra parts will be found on the workbench.
  -- Klipstein's Tenth Law of Productio...
• After the 16th screw has been removed, the wrong cover will have been removed.
  -- Klipstein's Eighth Law of Productio...
• After the 16th screw has been replaced, the gasket will have been left off.
  -- Klipstein's Ninth Law of Productio...
• If a test system function perfectly, all production units will fail.
  -- The RPCISPE's Seventh Universal Law...
• Anything can be made to work if you fiddle with it long enough. -- Wyszkowski's Second Law