Weirdest thing: when Crazy Redd came to town, his tent was there but he wasn't. I found him standing alone in another part of town. All the dialogue was the same, and when I followed him into the NONEXISTENT tent, the items were there! I kept quitting and saving, hoping it would "fix" but it went on and on. Each time he was in one place and the tent in the other. It was actually pretty funny.
Another few times, animals have dropped off the cliff edge or stood on top of the town signs, then fallen off!