Thread: The worlds smartest dog, part two!

Does your dog do math? Mine does!

The only dogs I remember were from my childhood, so my memory may be a little off, but I recall that all of my dogs, when walking towards me while I was walking, would walk towards me and continually adjust themselves to always head towards me while I was walking in a fixed direction! This is not so with Rusty! Rusty sees me walking, and quickly does some doggy calculations in his little doggy pea brain, then he starts to head towards a position just ahead of where I am walking so that we meet at the same location at the same time! I find this to be incredible! I also suspect that Mr. Toes would be very impressed, while Basil would probably be thinking something like, "Huh...what just happened...Hey! is that a cookie over there?"
I am curious if this is a common doggy trait or not? I would also like to hear some other stories about mathematically inclined pets, or any pet story you wish to tell!