Thr Rottweiler was one of our kennel projects we used to train rotts for perimiter protection, You let him lose and he will watch and destroy any intruders. I was working blue 29" 145LBS hard and when I was done a female was released into the yard for a buyer. Blue was worked up and pull me over a three foot fence by the neck, tore two big ripps in the back of my neck missed my juglure by 1/4 inch. I got lose but he was on my head. I can honestly say I know what a rotts ass looks like from the other side. I was home on leave from the Marines and was able to break loose. The head bite left a scar the runs from my left eye all the way to the back of my head. All in all two 6" scars back of neck, two 4" scars on the other side of my neck "he needed a better grip", one long fang mark that was the result of me choking him and pulling on my head out of his mouth its just above the left eye and all the way to meet the other scars on my neck. The doctor lost count at 850 and three hours on the table. We sold the dog he had no fear of me and I could not work him anymore. He did a job on a guy in Kansas two years ago in a junk yard they found the chump in a recked car bleeding for someone to call the police. He had to deal with Bluse for 6 hours I had my fun in under 6 seconds. OH boy