I've got a hilarious bug going in my current game.
I'll try and keep it non-specific.
Myself and Lydia are off to kill a dragon, a warrior lady, Delphina, has asked for our help and we are following her to the dragon's location.
Along the trail a madwoman approached me and begged for me to cast a spell on her, she knew some things about my previous adventures so I figured she was more than just a kook... maybe even a princess in disguise. So I use the spell on her, it has a temporary negative effect BUT Delphina aggros on me for attacking a civilian.
I don't want Lydia to kill her so I cast Calm on Delphina. I can talk to her about the quest, and she continues on the path to our dragon. Problem is that every 60s the Calm spell loses it's effect and she starts attacking me again. I cannot talk to her to pay my bounty, she just kills me, if I kill her she revives within seconds because she has to complete this quest. So I have been Calm kiting her along...
Of course anytime she gets hit the Calm spell is dispelled, and because she is Calmed she will not attack anything until she is attacked. If I am closer to her than the thing that attacked her she aggros on me, and Lydia then aggros on her - making this whole dragon killing thing pretty tough for a sneak-llusionist like myself.
I will probably have to jump back to an old save. Any ideas?