I really know nothing about Rottweilers but I know some forum members do so I hope one can answer my question. It is just curiosity really. At agility class there is a gorgeous Rottie female pup, between 5 and 6 months old I think. She was getting overly excited at the chute, so while the instructor was holding her, waiting to send her through the chute to her owner, the instructor lifted under her collar a little so the collar would press on the back of her neck to help calm her down. The pup snarled angrily at the instructor for several seconds, about enough to make me sit up and take notice. I was just kind of surprised to hear the snarling coming out of a sweet pup like that. The instructor said she was having a little temper tantrum and the owner said, "Do you know about Rotties?" and the instructor said yes so the owner didn't have to explain anything to the instructor but I am clueless as to what they meant. Can someone enlighten me? Thanks!