We've been looking for a friend for our 22-month-old Basset Hound for months. We wanted an adult rescue, but we never found a good fit. My heart has been with corgis since we lost our last one, so we recently purchased a corgi pup. Our Basset LOVES him, but she's very pushy, to the point of getting on the puppy's nerves. She'll push him over, nibble on him, and cut him off when he's running. She pins him down and engulfs his neck with her mouth. She doesn't bite, though, and we separate them when she does this. The puppy is very sweet, but he responds with going after her and biting her ears and her skin. If Basset doesn't bully, they play wonderfully together. I've read they need to work this out themselves, and I've also read we should separate them. The puppy is nine weeks old and will be heading into the strong biting phase. I'm concerned it's going to get a lot worse. What should I do?