MXM- I hope your hen recovers quickly!!! I worry about this happening with ours. Our dog, luckily, is now chained far enough away from the coop, but the other day my youngest child hooked up the dog (the wrong way) to the chain (unhooking the leash from the fence). The dog ran out of the backyard by digging under the fence and a 25 ft leash in tow. My first thought was OH NO..THE CHICKENS! They were fine, no evidence the dog had been there at all and the kids caught the dog once she ran out of the backyard.