Related:

• If you can't tell the difference, there is no difference.
• How can you tell the difference between men's real gifts and their guilt gifts?
  Guilt gifts are nicer....
• How do you tell the difference between an electrical fire and a chemical fire?
  You use a fire distinguisher, of course. -- Dave Asche...
• According to the ceremonial customs of Orthodox Judaism, it is officially sundown when you cannot tell the difference between a black thread and a red one.
• How do you tell the difference between a white owl and a gay owl?
  The white owl says "Who, Who". The gay owl says "Yoowho, Yoowho"....
• What's the difference between genius & stupidity? Me, and You.
• Dogs just don't seem to be able to tell the difference between important people and the rest of us.
• The difference between meat and fish is that if you beat your fish it dies.
• The difference between success and failure is to refuse to quit when you are discouraged.