I have a sweet 15 month old retriever mix. She gets plenty of daily exercise and is a joy to have. However, when I take her to my boyfriend's house (bulldog, pit-mix and cat), she is just crazy! She becomes excitable, playful and doesn't listen to my commands at all. The bulldog is the alpha dog and she'll take his toys just to taunt him. He may not care about the rope/bone but since she has it...he'll then want it. She runs around the house, chasing the cat (whom otherwise wouldn't care about her or the other dogs.) Overall, she is just so excited when we are there. I've tried leaving a leash on her and food commands...even separating the dogs...these work for a few minutes but as soon as I stop focusing on her, she's back to her antics. Her behavior stresses me out and takes away from quality time for all of us. Any suggestions?