Talking about Ceasar Milan's techniques spurred me to look again for Westie treadmill videos. So... if you'll indulge me and be amenable for some gratuitous Westie treadmilling..
Here is one in an obvious therapy capacity using water. Ok it started off as a treadmill and wound up to be a swim.
OK - so I had one last one here. It has nothing to do with Westies at all but it was so random and captivating that I need to share this. This is in Japanese if you were wondering. It's ok to tap your feet along with the song. It's rather catchy.