My son Ward owns a shiny green four-wheel-drive truck. He also owns a 110-pound black Labrador named Tony.
On trips, the dog generally sits on a platform behind the driver's seat, resting his huge head on Ward's shoulder as they travel cheek-to-cheek. Ward did not give this cozy arrangement a second thought until the day he took Tony with him on a trip to Montana.
While listening to his CB radio, Ward overheard one trucker remark to another, "See the little green four-wheeler you're about to pass? When you go by him, take a good look -- see if that's really a dog driving."