Cat+Dog.

Sebastian has a "house" that he goes into when we're gone (since he is psycho when we aren't there and goes crazy and finds things in bags to chew up). He loves his house and whenever we get ready to go, he goes into it on his own. 

Lately, someone else has been loving his house too:

 For a few weeks now, we'll walk into the office and Ty will be hanging out in the house, just sleeping happily. When it is time to put Sebastian in there, we don't quite know what to do with ourselves because Ty refuses to leave. So our solution?...