Spark used to go mountain biking with us. We got up early one 4th of July to get a ride in before it got hot. We rode the loop and got back to the parking lot and there was one group of riders getting ready. There was also one large prairie dog standing in the lot that was habituated to humans and thus unafraid. Spark hit it on the full run and shook it to pieces in front of the startled group. One of the Woman kept shouting “do something”. Spark was doing something alright. In retrospect I’m lucky I didn’t get a ticket or something. Good boy.