If I were you, Id also take a gun with me when out with your dog. There have been documented cases of people being attacked, too. I sure would hate to read something happened to you.
One night I got home late, around 10pm, and thought about not locking up the chickens. I thought Id better anyway and when I got to the door into the coop, I saw what I thought was a German Shepard trotting thru my pasture not 10ft away from my coop. It was a coyote! Once I realized what it was , I got unto the coop and closed the doors and watched til it was gone. From then on I have taken a rifle with me if its dark. My thought was I was lucky it didnt come after me. It could easily have jumped the fence and gotten my chickens. Just be careful.