I've had 2 lab / collie mixes, a lab and Rottweiler growing up. I studied about the Dogo Argentino for a few years, and just this year we got ours. He is six and a half months old right now, and so far he is the most sweetest, affectionate dog I've had. We got him at 10 weeks, and he has never been a big chewer. Depending on the situation hes been left at home to roam free in the house, doesn't chew the wood chairs, carpet, all of our cords for the ps3, xbox 360 and the two tvs in the living room. But Im assuming we just lucked out. The only issue Im having with him right now is that on leash, and off, he darts for moths or butterflies. Sometimes I cant see them, and he can be walking nicely and all of sudden dart for one on the grass or the road. He loves to chase bunnies and squirrels, but when told to stay he will stay, or mid chase he will stop if you tell him. He doesn't bark a lot, we had one drunk guy run up to us across the street near a 7 / 11 wanting to pet him, so he barked a lot at him and he wouldn't let him pet him. He sleeps with me in the morning when my boyfriend leaves for work, then at 8 he wakes me up for his breakfast then its off to work I go. He stays with my friend and her 2 dogs during the week while we are at work. He is sweet with everyone and great with other dogs, sometimes shy at first, then he gets the wiggles and wants to play with them. Sorry for no paragraphs, those keys haven't been working all day today. Good luck on your presentation!