Winnie is just over 8 months now and today I gave her a chicken foot for being a good girl at the groomers. When I went near her bed while she was eating it she growled and snarled at me bearing her teeth. It was quite frightening which is obviously the point but it took me by surprise as she has never done this before with anything. I can normally take things out of her mouth (which I give straight back unless they are bad for her) and she doesn't make a fuss of any kind. She didn't do it when my husband came near her but only with me. He took it out and gave it back to her and then I tried it myself and she let me take it in the usual way and then I gave it back to her. Is this part of adolescence? Why would she have done it to me and not my husband?