It's possible to use animal empathy to dominate Dendrine the Worg in Andunor's fighting pit. Whilst this is a triumph for friendship and the love of all living beings, releasing your newfound friend from domination causes her to wander off and vanish from the arena; making it both impossible to win the fight and impossible to leave the arena (since -makesafe only puts you
inside the gnoll fighter's cage and lenses don't work), making your only option replacing the worg and embracing your new life as an arena mongrel. I suspect the lack of Dendrine could also break that fight for anyone else trying to do it, but was unable to check.
Tangentially, I'm now also stuck in the gnoll cage with no conceivable way out. It's
safe in here.
EDIT: I was able to escape, courtesy of the mighty power of re-logging. The cage boss still thinks there's a fight going on in the (empty) cage, though. I don't have the heart to tell him I lost his dog.