I had always wanted goats until we stayed at a RV park that had goats.  We were staying there long term and the goats would get out, a lot!  It was so funny though that we would get up in the morning to find them at our campsite doing lawn maintenance but clipping and fertilizing!  I was just glad that weren't mine as they weren't that easy to contain and even more difficult to drive back to the pen.  They seem to be having so much fun in the video and are so organized in taking turns that humans might be able to learn something from them.