Hi gang, Well, now it's my turn to seek dog advice. Our dog is a Welsh Corgi mix. We were told she was mixed with a Jack Russell, but I find that hard to believe. She is the spitting image of a Corgi, with longer legs and bigger ears. She's obviously mixed with something, probably a terrier due to her attitude, but I don't know exactly what: Mocha is about 2 and a half years old. We've got her from the shelter @ 6 months - she was fully housebroken already. Previous owners gave her up because she chewed on things. Well, duh. That's what puppies do. Anyway, she's been a great dog. She is very vocal - she barks way too much, and does an awful lot of playful growling and "talking", but she's sweet and is a lot of fun. Until recently. We are expecting a new baby, and my wife is pregnant. Shortly into the pregnancy Mocha began treating my wife badly. First, my wife tried to pet her while she was eating. This has never been a problem before, but Mocha decided to snap at her, quite viciously. The discipline method used was: Grab her neck, hold her up, tell her NO! and put her in her kennel. This was a couple of months ago. Mocha has been getting more and more aggressive now. Last night, she was playing with my 6 year old, and she was growling and carrying on (playfully) like she usually does. The play (between both my daughter and the dog) was getting a little out of hand, so they were broken up. Mocha continued to growl, so my wife slapped her on the butt lightly and said, "No". This is what we've done for 2 years and Mocha always gets the point. This time, she turned around and bit my wife. Not enough to draw blood, but she left a nice bite mark on her hand. She's never bit anybody before. I don't know what to do. I love this dog an awful lot, but if she continues with this, I'll put her down. That would be the worst thing I've ever had to do in my life. This dog is family. She sleeps on our bed with us every night, for crying out loud. She's been a wonderful family pet for 2 years now and I can't imagine life without her. But at the same time, I can't have an aggressive biting dog in my house. I don't get it, and I need your advice.