Not sure why she does this, but Brittany only seems to bark at me. Especially when putting her leash on to go out or when letting her out of her crate. She was with my parents for the last week and they said she never barked at them (only when playing). Is this possibly a dominance issue, is she trying to establish her dominance with me? She is almost 6 months old, she plays fine with other dogs, tries to be alpha with some of them, but not all.