For me, the worst pain has been the loss of my pets. Rascal (ferret), Sami (dog), Trouble (ferret) and most recently Miko (ferret).

I've been drilled unfrozen by the dentist, broken my ankle, several sprained ankles, carpal tunnel, surgery for carpal tunnel, stitches in the head after a fall and a divorce and all of these pale in comparison to losing a loved fur baby.