The dynamic between Bo and Toes is going to be fascinating to watch.
I say this having spent most of yesterday following Bo around watching him try to figure out which places to mark for his own territory. Problem is, there isn't much for him to mark. Everything in the West Wing is already "spoken for," same for the residence. Bo says even Big Guy appears to be marked.
The poor puppy was so confused that he just sat down in the middle of the Oval and started whimpering. Then I saw Rahm standing off the side with a big grin on his face. Ewww.