On Sundays I try to take Duke for a walk along one of the pipelines near our house. Although we have leash-free parks in Austin, they are a bit of a drive and the pipeline areas work just as well. We have a big backyard but the way he runs around, you'd think he'd been in a crate all day. He casts around for scent, letting his nose lead the way. Sometimes, he takes a little side trip to investigate a particularly interesting smell and has to catch up with me.