coolidge etkisi

• momus'un is there sex in marriage? şarkısında eğlenceli bi tekerlemeyle özetlenmiş (alakalı anekdot özetlenmiş gerçi, etki değil):
  
  calvin coolidge at the rooster farm
  the good mrs coolidge on his arm
  asked the farmer just how come
  the rooster could perform so many times
  
  the farmer said to mrs coolidge "my cock's harder!"^*
  "tell that to calvin," she said, "he lacks ardour"
  "well that may be," the president replied
  "because it's not the same hen each time."