This seems like it should be really easy, but we're having trouble coming up with a solution. We want to add a loafing area and some small stalls to our concrete-floor barn. We're planning to use cattle panels for the walls, but can't figure out how to secure them to the concrete floor. This is a clearspan hoop style barn, so no "real" walls to attach it to. How do we keep the panels upright and secure enough for goats to lean on?