My lab is almost a year, and she's come a looooooong way but there are a few bad habits I'm working on breaking...well, have been working on it forever. First habit, she still mouths when excited, after about 15 minutes of play this happens. Second, she randomly jumps on the couch and bites it ?. Lastly she ignores us when we try to call her in from outside because she's digging or eating rocks lol. She gets a time out every time she does these things but it seems to be taking a long time to break. Is this another lab thing? I've always had labs but they've been quick to stop or never even did these things.