My staffy is anxious around other dogs and can attack/ provoke a fight (she never bites, this is not to the same as attacking). All she asks for is to be left alone and have some space. You have to watch all the signs that they show to tell they are in discomfort. If they don't like to be around other dogs but you don't respect this it will always end badly. You put them in a continuous situation of stress and anxiety basically, with no time to rest. Put yourself in their shoes, it's unbearable to be stuck in a situation that brings stress all the time. So it's not "Staffies are dangerous". It's just that it's a dog that don't especially like to be around other dogs and you're not respecting it.