Hartley's Second Law:

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• Never sleep with anyone crazier than yourself. --
  Hartley's Second...
• Hartley's Second Law:
  Never sleep with anyone crazier than yourself...
• HARTLEY'S SECOND LAW: Never sleep with anyone crazier than yourself.
  My corollary: The completely psychotic have all the...
• Never sleep with anyone whose troubles are worse than
  your own...
• Never share a foxhole with anyone braver than yourself.
  Murphy's Military Laws,...
• Never share a foxhole with anyone braver than you are.
  Murphy's First Military...