I've got my new little yellow girl now - picked her up Thursday. She's 8 months old and she's really good as gold -- her mistakes are all inadvertent and due to my failure to supervise, because most of the time she acts like a grown dog and I forget that she's a puppy!
Miss Katy.
Miss Katy and The Pack. ("No! It's MY duck!")
Sounds like you need to get Marley's Ghost into a good training program that involves LOTS of energy (obedience, sadly, does not). Agility, flyball, or my favorite for Labs, Hunting Retriever.