Since yawning is contagious,

  • would yawning while standing in front of the mirror result in a yawning-loop? 
  • You just invented perpetual motion. Unlimited energy. File a patent quickly! 
  • Yawn 
  • Yawn: Yawn yawn 
  • It isn’t perfectly contagious, so the loop would end at some point. 
Phew
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