Never draw your dirk when a blow will do it.

Related:

• Never take a stone to break an egg when you can use the back of your knife.
  Scottish...
• The fastest draw is when the sword never leaves the scabbard.
  The strongest way to block is never to provoke a blow...
• Live and let live. --
  Scottish...
• People often talk of my drinking, but they never speak of my thirst.
  Scottish...
• Beefsteaks and porter are good belly mortar. --
  Scottish...
• Better bend than break. --
  Scottish...
• Confessed faults are half mended.
  Scottish...
• Twelve highlanders and a bagpipe make a rebellion.
  Scottish...
• Why do scottish people refuse to buy refrigerators?
  They don't believe that the light will go out when...