The Parable of the Med Student and The Frog

     A medical student happens across a frog in the road.  The frog
pipes up, "I'm really a beautiful princess and if you kiss me, I'll
stay with you for a week".  The student shrugs his sholders and puts
the frog in his pocket.
     A few minutes later, the frog says "OK, OK, if you kiss me, I'll
give you great sex for a week".  The student nods and puts the frog
back in his pocket.
     A few minutes later, "Turn me back into a princess and I'll give
you great sex for a whole year!".  The student smiles and walks on.
     Finally, the frog says, "What's wrong with you?  I've promised
you great sex for a year from a beautiful princess and you won't even
kiss a frog?"  "I'm a medical student," he replies.  "I don't have
time for sex....  But a talking frog is pretty neat."