I've got numerous stories....
My dad brought a german shepherd home around the time I was born. I don't really remember him, just stories my mom used to tell me. I was told that if I was doing something wrong, like trying to climb on a chair, he's pull me off. They got rid of him because he broke a chain and a screen door to get to my mom once when she was trying to spank me. I was only a toddler so don't know if that really happened.
In grade school, we had a collie mix that was actually my sister's. He would walk her to school, then come back to walk me to school, came back for recess and to walk me home. He got his back leg run over while walking home from the store with my sister.
The next dog was my ex-in-law's dog. When I was dating my ex, she would start with her nose between us and would slowly work her way up until her entire body was between us. LOL. She was very protective once I had kids. Any time I would go over with them, she would be very close at hand. I remember her dander going up when one of my ex's brother's friends came over. She got abused by the kids when they were young, yet never growled or snapped at them. She looked like a brown bear, part collie and german shepherd and maybe something else, we were never sure. She would allow the girls to ride her like a pony, pull her fur, hit her when we were teaching them to pet, but never tried to snap at them. Damn, now I'm remembering that dog and miss her...