We adopted a German Sheperd/ Beagle mix from the shelter two months ago. She lost an eye in a "vicious attack" (the shelter's description) and was rescued in Virginia. When she came here, her eye was removed completely and she was put in quarantine for 6 months because of rabies concerns and recovery from surgery). We noticed she becomes VERY anxious when she hears a bell-like sound on TV and she is very aggressive towards other dogs (growling, barking, lunging, trying to bite them). We have a cat who is "vacationing" at the neighbor's house since Teal's arrival. She's smart and responds to these commands: sit, drop it, supper, let's go in, and who's a good girl (rolls over). She is very affectionate and good with us and wit other people, she just jumps (isn't aggressive. We're working on this, as well as her jumping on us. I am wondering if she was part of a dog fighting ring because f the bell thing and her injury. We are bringing her to an obedience class for some ideas to help her aggression, which she may have learned before she was initially rescued. I'm wondering if she was a victim of fighting,what we should do is just make her feel safe and walk with her, keeping her under control if we meet dogs by chance. If she feels threatened by other dogs (or feels she needs to attack them), those feelings can be deeply ingrained. She is part of a child-free home and we will keep making her feel safe and loved, whatever else we do. Thanks for any thoughts.