you are right there, it is easy to let the small dogs get away with stuff "it is almost cute" until it gets to be a real pain in the neck. My ex mil, had a West Highland White Terrier, she was too cute, but sooooo cute that they never told her how to behave, it ended up with her running the house, every time an animal came on tv she started to bark and attack the tv, so ex mil, started to watch those kind or programs with headphones so she couldnt hear, but that only lasted for a little while, then she had to turn the tv off. So Linda the westie had them totally wrapped around her paws. But it was going so far, so it was not cute anymore, she was the Alpha in that family and she knew it too.
Good Luck with the little guys and I am sooooo looking forward to pics of new dog here
Marit