Because the apartment smelled strongly of the cat when we arrived, we left the window open (it was open when we got there). Somehow the cat got out while we were away from the apartment. Then we got many calls from the host, and being cat lovers, at the host's request, we went back to check if the cat was ok. When we got home the cat had defecated and urinated on our bed and so we just left the apartment and tried reaching the hostess. We still have not heard from her and have never been told by her that we failed to follow any house rule. She is understandably upset her cat got away but I would recommend (and did in my private review of her) the cat be trained to accommodate people and something be done about the cat odor.