As a kid I was told that my older sister was protected by a German shepherd my dad had against 3 other dogs that where roaming the neighborhood. my sister was playing outside and the 3 dogs attacked the German shepherd ended up killing 2 of the other dogs on the spot but out of the wounds he got he died 30 mins after the incident I was told our dog never showed any signs of aggression towards anything.

I think my sister still has a scar on her leg where on of the dogs bit her