I am new to keeping chickens, but have read a bit about building coops and runs. I was thinking to "flash" the run fence and ground with CW buried beneath the dirt... Does anyone have experience with this method? Does it work? I was also considering digging a 12" deep hole under my run gate and fill it with large rocks/cinder block then smooth it over with dirt. I figure predators that attempt to dig under will only encounter rocks to dig through. Good/Bad idea? Thoughts? I this would work since I can hardly use the same "flashing" method as I plan to use on the fence.