I've been around snappers my whole life -- and that's a long time. When we were young, like probably 10 and older, we caught a lot of them that family members "processed" for great meals.
They do express a bad attitude, but in all my encounters with them I've never come close to being bitten. I don't know of anyone who has ever been harmed by one. Like with any wild critter, just give them due respect.
I have one in my pond now. He (she) is welcome to stay. I would only have an issue with them if they were to overpopulate. But, even that is remote. They kind of have a pecking order (snapping order?), and some will move on.
Enjoy them.
Ken
