By the way, the funniest "bug" I've encountered so far happened in Riverwood. Any time you kill a dragon in a town all of the townspeople like to run out and gather around the corpse to gawk at it and generally talk about how amazed they are. Well, I killed a dragon that died just on the other side of the walking bridge. Probably 8 or 9 NPCs ran up and all tried to fit onto the bridge simultaneously. Sufficed to say, there wasn't enough room and one of the child NPCs was shoved off the bridge and swept down the river.