when you par boil it, throw a little baking soda in the water. same with most any nasty critter especially a turtle. then i cut the possum into chunks, drain the water and wash the baking soda scum off everything, put the meat back in the pot with some water and a half handful of red pepper flakes and boil till tender. drain the water off, toss the meat in some cornmeal breading with salt and pepper, and either pan fry, or deep fry till crisp... mmmmm
if you find a possum, take him home and put him in a crate and feed him apples and milk. lots of apples and milk.3 or 4 days later, he's ready to eat.