Well OK, not the whole thing. But back in the day, I used to be quite the hiker. You can see movies from a couple of the great treks I took on all four legs here on my three-legged dog videos page. I used to wear my own backpack, and even hiked the Pacific Coast Trail. Well OK, not the whole thing. But here’s a video my people made of me enjoying our brief hike on the Appalachian Trail in Vermont …