For the life of me I can't understand these 'out-of-control' host-guests scenarios.
1. The guest complaints of a 'gas leak'. Oh wait, it is just a 'bad smell'. She the only that smells it?
2. Immediately that is the first thing that should have been addressed; it is the start of most hustles.
3. That would have established if she was lying or is a fruitcake. Or correct.
4. That would have exposed she brought 3 dogs (!!!) to a no-pet listing. Where these dogs invincible upon entry?
5. That would have been the point she needed to get out of the place.
6. That would have been when the host had to accept the fact they had a 'looser' in their hand. Next.
Conversely, now she wants a refund and let the hassles begin with Airbnb and imagine the 'review' that will come out of this royal mess.