I came home after dark from running errands today. I let the dogs out for a little zoomie time. No balls since it was dark. They got to blow some steam off. But when they started to graze on grass it was time to come in. They have a nice big dog pen +/- 20 feet x 60 feet. But they are only allowed in the attached dog park with supervision. The fence in 4 foot deer fencing which Xander could be over if he just realized. That's why the supervision. But tonight it was dark & late & they needed to be fed. So 10 minutes of running around before going in.