Ohh yes!
My ESA is a 168lb Great Pyrennes. Now he is very friendly but no way would I personally force him on a AirBnB host, especially one who says no pets.
But we all know there are some people out there who will take full advanatge.
I allow dogs and have not had somebody turn up with an animal other than a dog, I have had people leave their dog behind all day, never thought anybody would do that, I would not.
So now I ban that. I do not have many rules, that is the only one I have added.
I think it would be difficult for someone to pull the Assistant Animal card and then say they are leaving it behind all day....
David