Me too! I had never had a dog before, so I did a lot of research and visited a lot of kennels before deciding on my chocolate girl. She was the "boss" of her litter and I had almost decided on another girl who was quieter, but she went straight to my kids, stood on their feet, and shouldered away any other pups who came near them. With an endorsement like that I had to take her home!
She has turned out to be VERY energetic but highly trainable and a sweet lovable dog. She is very small (21 1/2", 45 pounds) She has NEVER offered to growl or snap at anyone, even when my little boy plays roughhouse tug-of-war games with her. But if she doesn't like the look of a person or a dog she will do the same shouldering routine - get herself between us and the other and just stand there, staring. Dogs seem to respect this and approach no closer, and people definitely back off.
We have her in agility training to give her something to do with all that energy.
At her first agility trial.