My lab is tall for a lab. He is a scrappy SOB even with bad arthritis. He is naturaly gaurdy wich is great too. I'm pretty sure in his prime he could have taken on some pretty mean dogs if he thought i was threatened... but never enountered any and im glad for it! I was suprised how good his instincts are about protecting the home. Some relatives flew in from out of state to stay with me. I wasn't going to be home when they arrived, but told them were the key was and to let themselves in. I had put Mikey (lab) in the old barn so he has more leg room for the day. Ol' Mikey decided to tunnel out about the time my relatives showed up. Of course he means business now, people are tresspassing on his turf. They said if they didn't know Mikey's name, that they would have been in for it. When they said his name his tuned changed to "Oh they know me! Oh boy oh boy oh boy, ball?" :lol: