When I was a wee boy and came to my friend's flat to exchange some toys.
I ranged the door bell, his father opened the door, the German Shepard stood next to him barking at me, I was frozen in fear, then it pounced at me and clenched it's jaws around my arm and wouldn't let go. If it wasn't for very cold winter (-30C)for which reason I was wearing a very thick jacket I'd probably get my arm bitten clean off. I was around 9 years old.
The father would softly keep saying "stop" to the dog while it was tightening it's jaw around my arm jerking his mug around trying to rip it off, thank god i managed to stay on my feet If I'd fallen down it would have eaten my face off. Anyways he then eventually took it by it's caller and dragged it off of me when he realized saying "stop" softly wont work.
After the attack he did not apologize, he didn't say nothing. I asked if the dog has been given shots he said yes.(I was worried about diseases) Even though I was wearing very thick jacket (-30C outside) I still had my arm mauled by fangs of that creature. So to sum it up, im not big fan of that breed and people who like that breed, it speaks of what kind of person they are.
TL;DR 9 year old boy got attacked by german shepard. evil dogs

edit: Don't remember exactly, was between 9y-11. So most likely 10.