The Best Dog With Our Kids

We bought this little girl almost a year ago. She's not so little anymore. She is a lab/shepard/collie mix. She potty trained quickly and loves the kids. She is a bit timid at first and spooks at noises outside (burglars beware because she sounds quite ferocious when she's protecting her family) but her tolerance for the kids is unbelievable. Our toddler can lead her around and lay on top of her when she's sleeping and Rox will just look at her, never offering a growl or nip. Our two-year-old has fallen on her and not a problem. I really believe Rox thinks she is one of them from the way she acts. She has her annoyances (chewing being one of them if she doesn't have "her" bone - which I can only get at one store in the whole area and it's not the store we usually shop at) but overall, she's a good family dog.