In my lil bro's game, he broke into Honningbrew Meadery and the shopkeeper was invisible, could not attack, and no guards appeared. He stole a bunch of stuff, looked up, and the shopkeeper reappeared as well as a few other hostile NPCs, but no guards. His bounty was, as of then, over forty gold. If this helps, the shopkeeper was only making himself known via his voice, he could not see him when he was in the cellar, and he stole via spamming A. Everyone hates him now. He killed at least one dude. If it has something to do with names, like the MissingNo glitch, his name is "OOF".
...a grand he killed a chicken for 45 bounty. Right in front of its owner. He attacked without using animations. Good job lil bro.