Our dog Betsy has always been submissive as all get out. Not ever showing a hint of agression toward any other animal. Until recently we nicknamed her the lil s uck up. Since the puppy Nichole brought home is the same way in personality we never really thought there would be a problem between them. New pup is also submissive as all get out. Seems we were wrong. I don't know if it's Betsy trying to show Gracie who's Boss, or just plain jealousy but she's gone after the pup three times now. All 3 times had to do with food/chewy bones. So we've done our best in keeping them apart during the times anyone is eating and no chewy bones except in individual crates. It seemed to be working nicely and Gracie and Betsy were becoming close playmates. Tonight was the 3rd time. Betsy had found a chewy bone in Nichole's room. I took it away and placed it back into Gracies crate and locked the door. But I forgot the baby can open the crate doors. Evidently Aubrey opened the door again and Betsy once again got the bone. So Nichole goes to take it, gets it away no problem, but unfortunately Gracie picked that moment to be nosey and approached to suddenly be attacked by Betsy. Attack sounds vicious and brutal but we can't actually SEE because they're under the coffee table. Nichole goes to get the puppy away. Came away with a gash in her finger. (don't know if she scraped a tooth, got caught by a claw, but don't think she was bit) Attack showed no signs of stopping. I reached down lifted Betsy by the scruff and her back skin and pulled her off the puppy. Gracie takes off running. I place Betsy into her crate with a loud growled NO! (actually took much longer to type than it did in real time) Puppy doesn't have a mark on her anywhere. But I think her scent glands went off because she is eminating this foul hound dog scent. Physically she is fine. But I think Betsy's stunt might have just ruined 2 weeks of hard work socializing her. She hid under my desk and it took forever to get her out. I have not yet let Betsy out of the crate. But will shortly as pup has gone to bed. What I think happened was that Betsy, having had the bone taken and placed into Gracie's crate once, then getting it again only to have Nichole take it, when Gracie walked up she might have thought Nichole gave Gracie the bone. (when she had given me the bone to make it disappear) If Betsy wasn't 3 times the size of the pup, and if the pup fought back, I might not have stepped in. But Gracie doesn't fight back or tries to defend herself at all. And I couldn't see if she was truely being hurt or just being "spanked" by Betsy. And this attack was much longer than the other two. They were very short, sort of like Betsy just putting pup in her place sort of thing. And I stepped in because older dog Molly will NOT tolerate ANY baby (animal or human) being hurt under her watch. Molly had just made her lunge from the couch as I lifted Betsy from the floor. If Molly had gotten envolved Betsy's spankng would've been painful and might have resorted to bloodshed. ARGHHHHHH!!!! I need to find Gracie her forever home quickly. And of course wouldn't you know I'm not getting any responses on the ads out for her. (but I'll keep trying) Those of you experienced with training and multiple dog situations I think I can use some advice. I don't want Betsy distroying all the hard work we've put into Gracie's socializing ect. And I don't want the poor pup terrorized either. And other than what I was doing with the keeping food/bones away from them and such I don't know what else to do.