Hello all, I just a month ago Rescued a 1 yo Sheltie. We are experienced Sheltie owners, have a 10 yo sheltie that we love. The new female that we named Piper is very scared and we have tried everything we can think of. We have talked softly to her and tried to just be around her while we play with the other dog. She just hides and gets super scared when We get close. To the point that when we have gotten to her to check her or put her collar on she defacates on herself (and on me once... Fun). She will not take treats from us or any food unless we go all the way inside the houseand in general is just terrified when we come around. When we go in. She interacts with our 10yo great. She eats well, drinks water, all that. But the min we walk out she goes in to hiding. Recently I have tried to start leash training as a way to get her use to me but she just thrashed in the hardness and then lays down and curls up. Any advice will help, I really want to help her be happy and healthy.