My Sheltie also has a very strong herding drive and started going after all Fast moving things including joggers, trucks, skateboarders bikes etc. I tried all the things you tried to no avail..] One night in dog class he got loose and went after a pickup and sometimes he catches up to them and then sits in front of them. Once he stopped a car in the middle of the street and no matter how the car tried to get around him he would just get in front and sit. He also cornered a UPS truck in a cul-de-sac. After the truck incident one of the members of our dog group suggested a shock collar because his behavior was endangering his life and the well being of others. I purchased a collar with both a warning noise and shock. I only had to shock him once and then the sound was enough to calm Him down. He now responds to the halt command. He still gets excited from time to time but he is managable.
Answered by Anonymous - 3/17/2012 11:15:49 PM