I Love the problem-solving abilities of the GSD and their ability to make judgements autonomously; which they use to save lives.
I remember my first GSD coming into the living room to plonk my ferret in my lap - who must have escaped his enclosure. She was followed by two of her flock of geese she was helping raise. promptly turned to shoo them back out into the garden with the others. Her judgement not to attack it and bring to me to sort out was the correct course of action.....
another time she saved a child getting bitten by another dog. Not by attacking - but by cowering it into submission before allowing it to move away. She lay down to lick the bite afterwards - her job done.
I hope my new pup is half as courageous :)