When I was a kid up in eastern Washington, I often carried pebbles in my pocket to toss ahead of me before stepping into tall grass. Sometimes I’d hear a rattler slithering out of the way afterwards. My little dog was good, too. She’d run ahead and keep the trail cleared of any snakes. I didn’t realize people ever shot snakes; so when I saw this ad for a snake gun proudly displayed in a shop window, it caught my eye. The ad amuses me because the guy they drew looks a bit like Hunter S. Thompson. I can just…