I had entered a vendor room, was standing next to him, when an unnoticed Gooey mob hit me. I had Radiant Aura buff on, but I don't think that does an AOE when hit does it? Anyway.. my wyrmling pet is behind me.. and the vendor started attacking it right after I got hit by the Gooey. AFAIK, once you get vendor aggro, you get attacked by an unending swarm of demonic mobs (correct?) so you may as well start a fresh game, if you're using permadeath like me. :-( With some of the bugs like this, save files being deleted upon load coupled with that, I'm starting to think that non-permadeath is the way to go until they fix these issues. I love playing with permadeath on but the bugs are making it frustrating when I'm doing good but have to restart fresh anyway.