I was just fighting an Elder Dragon in the courtyard of the College in Winterhold, presumably alone, when I saw somebody walking under the archways. It was Colette Marence, the paranoid trainer of Restoration magic of the College. Nobody else was around. She was just strolling around and making snarky comments like 'My bet is on the big one' (lol, what?) or ' I think I'm getting out of here'. She just watched the fight, neither fleeing nor attacking even though she got hit several times by a dragon breath.
This was a really funny situation. I think her character is really well made.