I have a 4 month old Queensland heeler puppy who is good for the most part, but if she sees another dog she goes crazy. She wants to play with whatever dog and will not listen to me when I say come, whistle, call her name, clap, etc etc. If there is no dog around she will come to me when I do those things.. It happened today, I let her out while I was getting mail, she usually does not wander off but she saw this little dog loose on the street [it belongs to a neighbor] and she chased after it. I called "Clementine!" and she would not listen. The first time she stopped, looked at me, then focused on the little dog. After that she ignored all my calls and whistles and insisted on playing/chasing/bothering this small dog who did not want to play because it was running away. I got her and put her back in the yard and I was really frustrated that she would not listen to me. What if she ran and got hit by a car? My neighborhood is rural but still you never know.. At the vet she goes crazy when she sees other dogs too. The only way for me to control her is to be firm and a little loud.. But I'm embarrassed to do so because I don't want anyone thinking I'm being mean, I need to make her stop pulling on the leash and jumping around! I don't want people to think I'm being cruel because everyone I see treats their dogs like babies. And the vets are kinda.. Well I don't like them. They try to make decisions for me when it's my dog and it gets annoying.. [A little off topic but they were like demanding that she gets spayed at 6 months, they don't know this but I'm going to let her have her first heat and then she can get spayed. She'll be in an empty chicken coop/run, fully covered, and we will go on leashed walks so no pesky unaltered male dogs will bother her. I read that a lot of vets do what's standard because of population control, not what's good for the dog.] She's never aggressive with other dogs, but she will get too playful and they snap at her. I understand she's still a puppy. Any help with having her listen to me when I say "COME" when there are other dogs around would be great. I am close to a dog park, I will keep her on leash at those until she learns not to go koo-koo with the other dogs. I've never had this problem with puppies I've had in the past... Is it normal with Australian Cattle Dogs to be a little more independent?