He is a big daft mongrel who was very badly treated by his previous owner who apparently didn't realise he wouldn't stay a tiny puppy and kept him in a dog crate designed for a much smaller dog.
He looks a lot like an Irish wolfhound but stockier and cannot accept that he is not going to fit on my lap, he also gets stuck under the coffee table a lot and is forever trying to fit through gaps that are no bigger than his head. He really isn't the smartest dog.