Related:

• The life expectancy of a house plant varies inversely with its price and directly with its ugliness.
  -- Britt's Green Thumb Postulate...
• Horner's Five-Thumb Postulate: Experience varies directly with equipment ruined.
• The probability of an event's occurring varies directly with the perversity of the inanimate object involved and inversely with product of its desirability and the effort expended to produce it.
  -- Walter Mule...
• The value of a report is inversely proportional to its length. -- Oosterval's postulate
• The accessibility, during recovery of small parts that fall from the workbench, varies directly with the size of the part -- and inversely with its importance to the completion of work underway.
  -- The First Spare Parts Principle...
• Spare Parts Principle The accessibility, during recovery of small parts which fall from the work bench
  varies directly with the size of the part and inversely with its importance to the completion of work underway....
• The quality of the house brand varies inversely with the size of the supermarket chain.
  -- Law of Supermarke...