I am blown away by the intelligence of my purebred GSD T-Bone. He learns so amazingly fast. I've had many smart dogs, but he trumps what I thought the ability to learn for a 9 week old pup could be. He's SO focused on what I want. When we walk, he heels perfectly and looks up at me, always paying attention. When I stop, he sits or lays down. He sits on command, stays well, shakes hands, and learned "tell me about it!" today. We were playing and he barked, I tagged a word to it, and he got it in a few tries. I've been doing it with him all day, it's not a fluke. He also likes to play a game with his kennel door. He touches it with his nose, it swings back, and he pushes it back, etc. He always makes sure to touch his nose to the same spot (where the handle is, but on the back side) and is dilligent he hits the same spot. LOL, I told you all about slamming his dishes, etc. Are all GSDs this crafty, and are they the smartest breed? I know they're so veristile, but this pretty much proves it for me.