I know nobody would actually DO it :-) I love that song - grew
   up with it - but I used to amuse myself imagining some twisted
   parent out there (or crazy uncle ) thinking it'd be funny using
   it like a lullabye - and therapists everywhere saying, "Oh,
   thank you! A new lifetime client!" - I have a very VERY dark
   sense of humor that many ppl don't get. It's like halloween - I
   picture some twisted dentist out there going, "Yes, YES - feed
   the little kiddies some candy --- more... MORE! Yes! More
   cavities to fill, more dollars for ME!" -- but if I ever heard
   of a real dentist doing that, I'd join the mob stringing him up
   by his teeth. "