My smallest dogis female, 20 pounds, and sweet until she isn't. She turns into a cujo. She tried attacking Riley today who is 52 pounds and my parents 65 pound shepherd pit mix. Riley and the mixed dog did not go after her. Thankfully, but she definitely has a mean side to her.I had someone tell me that female shepherds are mean... my Lulu im sure would protect, but she LOVES kids... mean??? Maybe to a burglar.