Rake End Path 2 - Dunno if this has already been fixed in the current build, but there's a log there that never switches off so you can get 89 gold every time you click on it forever. I'm assuming there isn't supposed to be infinite gold in that log. Don't believe there's another one like that anywhere else and never would have known about it but there are some areas that can be looted more than once per the changed dialogue/results.
Quest 11: You can return less than the specified amount and still get the same reward. I guess he didn't mind too much missing a couple hundred pieces.
