Good for him and you! I've just started letting Dexter, who'll be a year on the 16th, alone in the house with Luke for short amounts of time. However, I close all of the bedroom doors and the door to the upstairs and I also close the doggy door, so he has most of the downstairs, his toys, bed, etc. The longest I've been gone is about an hour and, so far, so good. I've been lucky to have dogs that are mellow when I leave. If they're on their beds or lying on the floor, they tend to stay there as I go out the door. I don't do goodbyes with them, I simply leave. Seems to make it easy for all. When I return, then there's some barking and commotion for a short while. I'm considering a trial run at letting Dexter sleep out of his crate this weekend. Any hints on this? Thanks.