A dog in the chicken yard

The other day our neighbor's dog ran into the backyard and began chasing Abigail around. All the chickens were squawking and flying as high as they could, I was yelling, the neighbor was yelling, the dog was barking - I'm sure it was very entertaining to all the neighbors, most of whom seemed to be outside in their backyards. Luckily the dog gave up before he caught a chicken. I'm not sure if he was really set on a chicken dinner or if he was just curious and having fun, but it was a close call. I reinforced the fence and we haven't had any incidents since.