There's a balance. If I camp in areas that experience heavy use, there had better be toilets of some kind. I use them. (Primarily, get there early in the year - BEFORE Memorial Day. Johns are still clean, lots of firewood, bugs are dead, and kids are in school.) Otherwise, I agree with the animal theory. Bury it.
Chuckie has another theory that I like, and use. When you set up camp, piddle in spots around it to tell the animals it's YOUR territory. And, put a bit high on a tree, say, chest high. They figure that anything that can wet a tree that high - they don't wanna mess around with.
Chuck did advise me that this last operation is easier if you use a cup. So, I did. He kinda grimaced over his coffee that evening. :roll: