One of the funniest things about big dogs is that they don't seem to understand that they are big dogs. Take Sully the Saint Bernard for example. A massive dog by any means, but it seems everytime "daddy" gets home, Sully tackles him and forces some quality hug time on him to let him know how much he was missed.
I will be honest with you. I would be delighted if something ever missed me that much.
While the thought of a massive Saint Bernard tackling you and pinning you might inspire images of Cujo in your head, it is quite clear to see Sully is just a big teddy bear. And really, what is better than a big teddy bear that loves to give hugs?