I have a 17month old male Newfie, who appears more and more aggressive as he gets older. The main problem is his continuous barking at absolutely anything. We are fully fenced, with 6 foot fences and a large yard. In the mornings, he runs around the section, barking towards the neighbours or even just the slightest noise, within the neighbourhood. We cannot leave him outside at night, as he will bark on and off, continuously. He will bark directly at us, if we are busy and will then proceed to pinch anything that is not nailed down and taunt us, just to get attention. Yes, he does get plenty of attention, but we will not give in to him, when he becomes dominant. The only thing that stops this behaviour, is to grab him (if you are quick enough) and put him out in the laundry, until he settles down. This alone can be quite trying, as he will run flat out, back and forward, not letting you get close enough to grab his collar. He uses the full extent of his size to push his way through anything and will sometimes lurch, when being walked. Grooming is a task, as he grabs at everything and while he may lie quietly for a few minutes he has recently become quite aggressive towards me. I'm not sure if I am miss-reading this behaviour as he has never intentionally bit me and is generally gentle when he does grab my hand or arm, but the growling is starting to frighten me, even though this is the same sound he makes when rolling on the ground and just being an idiot. I'm sure he just likes the sound of his own voice, but this is also putting quite a strain on our marriage, as my husband is less tolerant. Please note that this is not our first Newfie, but he is the complete opposite of our last boy. Although both boys were not neutered and I didn't want to have to, I have now resorted to booking an appointment for surgery, this coming Friday. I have no way of knowing, if this is going to make any difference, but something has got to give.