Hello! I’m new here. We have 4 dogs. All rescue dogs. All we got as babies. All of our dogs get along great and love each other very much. The issue we have is with one of them when we go out to dog parks. Leeloo is 2 years old, almost 3. She is the 2nd of the 4 dogs. Don’t know breed, although she sorta looks like a small golden retriever. She’s about 45 pounds. When we go to a dog park, she is overly protective of me and the pack. It started as soon as she started going to the dog park right after she was fully vaccinated at 4 months. She would just sit by us and growl at any dog that came to say hi. We would tell her no and pet the other dog anyway and encourage her to go play with her “sister”. Last year we were at the dog park and another owner came up to talk to me. He reached out towards me and she ran up and bit his hand. Didn’t break skin, no bleeding. Ever since then she has gotten worse and not just with us. Her younger “brother” is a lab mix and is a lovable idiot. He loves to wrestle with dogs at the park and whenever he does, Leeloo thinks she needs to get in the middle and “protect” him even though he is totally fine and playing. She gets aggressive at any dog that tries to play with one of our pack. Then today our oldest dog, Tilly, 3 years old, at the dog park another dog came up to us for love and Tilly flipped that dog and went into its neck. The dog was screaming like it was dying and when we got Tilly off of him and looked he didn’t even have a scratch that we could find, let alone any blood. But it seemed like she was going to kill him it was so aggressive. She has never done that before. Always happy at the dog park. It has only ever been Leeloo that we’ve had issues with until today. I just don’t get it because the four of them wrestle and play in our yard just fine, so it’s not like she doesn’t understand dog play. Any thoughts? I’d rather fix the issue than stop taking her.