Sometimes it just happens: you get the keys, arrive to your Airbnb and there you are welcomed by a little furry bundle of joy. On Airbnb you can check the list of amenities and see if pets are already included in the listing, however, sometimes the owners forget to mention that there is a cute animal waiting. The good news is it is a proved fact that animals are a great stress relief. People in this gallery arrived to their rented apartments and received a nice warm greeting from cute cats and dogs they didn't expect to see. How would you react?