Mark was scrolling on his phone before he paused. Jack had been outside for a while. He knew when Jack went to the backyard, he'd be out there for a while. But now it'd been a few hours. So he set his phone down and stepped outside. Whatever he expected to see, it wasn't this. Jack was holding himself upside down - with one hand - on a metal bar in between two trees. He wondered howling Jack had been going outside and doing this without ever saying anything.