I forgot that I had the girls free ranging and I let the dog out to do her business. Now I have 3 hens and one very sad 11 year old boy. I feel awful. It's my fault and now I don't know what to do with the dog so that this doesn't happen again. Can she be taught to leave them alone? I've never left her alone with the hens because I knew she wanted to get at them but then I forgot and this happened ! Any advice? Thanks for listening.