Ratter, i don't think that dogs are dominant in the Cesar Milan sense of the word, neither do I think that they lie awake at night plotting how to overthrow the humans, which is why I talk about pack difference and pack dynamic. My two brothers are very attached to each other, but when they went separately to the vet this week for vacs, there was a little bit of grumbling and back hair up when they met again each time. Dog who had been to the vets was stressed, dog who had stayed home with my sister was excited to see his bro again and there was just a lot of emotion around. 30 seconds together with enough space for them tocalm themselves and not be in each other's faces and it all blew over.