X2.If it happened to me I would have killed the dog. I would either shoot it or impale it with my sharpened pitchfork.
I'm ready for it, there is already many idiots with their dogs, who come around my property, even in the mud, just to show my chickens to their dogs and get them excited. My property is fenced, but if any dog ever get through, it's a dead dog. Their owners can cry me a river.
20 minutes chasing and yelling for help? That dog wouldn't have lasted 2 minutes. Thats about how long it would have taken me to get to a rifle. New neighbor would have gotten his dog back feet first.