Holy crap, this dog is absolutely amazing! I love Parkour, which is a human sport/philosophy, and one aspect of it is to see beyond the obstacles in our environments. The obstacles become the means to moving through them.
This video looks like extreme agility coursing. The owner/trainer (Youtube username 3FishMan) must have such a rapport with TreT. Hopefully, he doesn’t push the dog to do too much. Judging from the owner’s comments, including the ones I translated from Russian, he seems to really care about TreT, and the dog looks very happy. It’s cool how alive dogs are when they get a lot of physical and mental stimulation. Wow!