I had a border collie named Barney. He knew his left from his right and could probably have tied shoes if he had opposable thumbs. Incredibly intelligent with quite the personality to boot. He would begrudgingly offer up each paw to have his nails clipped because he knew his award awaited in the closet by the door... Frisbee time.
Jake the Farm Dog was also among the smartest dogs in the world. I sure miss him. 7yo died from pancreatic cancer. ðŸ˜
Alas, He was not a good critter killer instead he would herd ground hogs, etc