You have all heard about him, unsociable wee git. Only likes me, spends much of his time alone on the landing, being unsociable. Likes to growl at other dogs when they want to befriend him. Likes to have distance between himself and the entire population of the world, except me. Doesn't do sharing.
He is on a bed with the new foster dog 
Not only is he on a bed with the new foster dog, but the new foster dog is resting his head on Devil Dog and Devil Dog is not so much as grumbling about it.
The most unsocial dog in the world has a friend [aww]
I'm not sure if he is my dog. This is not normal. A more feasible explanation would be that someone has walked into my house, stolen the unsociable wee git and replaced him with an identical, better socialised dog.