Candy GSD Mix - no bites

Toby GSD Mix - 1st bite - stranger in the yard and no one was home. (good girl!)
2nd bite - my scary uncle who the first time he met her, he bent down in her face and growled at her to "Show her who's boss" he turned around to walk away, and she bite him on the butt (hee hee... serves you right!)
3rd - Gas Man when he was walking into my house Toby's latch broke and she bite him.
Never breaking skin on anyone, and never had animal control involved.

Sierra GSD - she nips people on the butt if they walk through the yard to fast
Buddy GSD - no bites
Both Sierra and Buddy are VERY protective of there yard, now we have a pen inside our fenced in yard to protect our guest's and there butts!!!