LOVE for Food-Stuffed Toys

I just posted about my plans to help the newest Smart Dog University resident dog help conquer his slight anxiety at being left alone. My first step was to teach him how to love a food-stuffed toy. So I smeared some peanut butter along the inside rim of the toy -- close enough so he'd only have to try a little and he'd get a big reward: a mouth full of peanut butter. Here's what it looked like:

http://www.youtube.com/watch?v=fXseLj-m840