Getting your kids to the dentist to get their cleaned is hard enough.  But cleaning the teeth of a 3000 lb. hippo? That seems crazy, not to mention extremely dangerous. That's what a doctor from North Carolina did for a hippo at the Puerto Rico  zoo. Evidently the hippos teeth had grown too big for his mouth so the Doc filed them down with a saw!  Hmmm,I wonder if he gets hazard pay?