The number of people watching you is directly proportional

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• The number of people watching you is directly proportional
  to the stupidity of your action...
• The probability of someone watching you is directly
  proportional to the stupidity of your action...
• The probability of someone watching you is proportional to the stupidity of your action.
  The chance of forgetting something is directly proportional...
• The probability of someone watching you is proportional
  to the stupidity of your action...
• The probability of someone watching you is proportional to the stupidity of your action.
  Hartley's First...
• The number of stones in your boot is directly proportional to the number of hours you have been on the trail.
  Milt...