warah, have you tried whistle lightly (with your mother there) and see how rupert behaved? playful or vicious? you mentioned your brother only had a cut above his eye, I promise you it was a playful accident. or else, his face would'va been full of bite wounds, punctures down his chin, cheek and nose. just not a while ago, one of hyper labs I live with, couldn't wait patiently until I let go of a ball, she went ahead and tried to take it, she loves balls! her claw accidently scrrrraped down my kneeskin! we do get "playful" cuts sometimes and playful isn't bad, at all. that's why we think rupert is not bad. gosh, look at that sweet chocoboy in your picture, he looks so friendly.

my dog, crayola looooves whistle sounds, gets so excited, but doesn't jump. if my dog can learn that then your rupert absolutely can too. putting him in garage is like your father grounding you a week later.. you wouldn't understand, right? this is like to dog's mind, always discipline at the very moment of his incorrect behavior because dogs can't understand your descriptive words you speak after.

I hope he's out of garage by now, poor poor rupert. and how is your brother now?