What would you do if you came home and there was?

a strange dog in your house, putting its things (a couple of old toys, a bowl and a rag) into the corner, and when it saw you, it gave you its paw and said: "Hi, I am from a shelter. They told me that you were dogless, so I adopted you. And my, you need this! Look at this place, it's a mess! Did anybody ever chew on these shoes? Or tear that sofa? Or (looking outside) chase this fat neighbour of yours, my, what ankles!" and sped outside, barking loudly, with its ears flapping at the wind, to bark at the neighbour?