Sherman becomes lovable
Series One. Dog and Toddler. Notice how Olivia has no fear. And how Sherman, if he doesn't feel like being loved on, has no tolerance.
Series Two. Dog and Dad. Notice here how Sherman is not only on the couch (the new couch that Rob loves and obsesses over ever spot and mark), but he is on the dad on the couch. Yes, this dog is making his way just fine.