Everytime I read about these attacks it always seems to be someone who has only had the dogs for a short time, every time. I'm not coming down on either side but this guy was looking after the dog for a friend, he'd only had it about a week. The dogs are massive powerful animals and these people don't know their history, don't know their temperament and don't know if they've ever bitten before. I've yet to read of an attack where the dog has had the same owner since being a puppy. They're either 'looking after them for a mate' or bought them for a quid in the pub. Knowing that these dogs can be a favorite of a certain type of person (not including all the owners in this) cause of how they look, it's easy to imagine, they haven't been properly trained, socialised or looked after. It also makes you wonder why they're being given away in the first place. The new laws mean they can't be given to anyone else by their owners anyway, so it shouldn't have even been in his house. I would not take a full grown dog from someone regardless of breed or size without knowing its history. The problem being small dogs can bite and maim, but these dogs are so powerful they will kill you if they lose control.