How does a run that is supposed to take one or two hours to extend, take 10 hours?!?! The walls were already built. It was just putting on the wire, slapping the thing together, put a door on hinges, and throw the roof on. Granted, we discovered that the ground needed dug out (grrrrrrr) but that took half an hour. So, seriously? How did putting the walls up take about 8 hours??? Anyone else have a problem when building?