Fitz wasn't usually a clutz--he was usually quick on his feet, quick with his hands, and sharp with his senses, even if he wasn't the brightest student. It went a long way both for Quidditch and for exercising.
So when his bag was suddenly snapping off his shoulder and sending his contents flying, some of them straight for another student, he was a bit beside himself with confusion and grief. Perhaps someone had cursed his bag--he was sure he hadn't snagged it on something (he was in the middle of the entrance hall, after all!), and he was definitely certain he hadn't put too many things in there.
"Sorry--I'm terrible sorry," he called out to the other student, and Fitz went to pick up the things he'd dropped there first, so as to accommodate the person who had been so rudely assaulted by books and parchment. "I don't--I have no idea what's just happened."
He was all on his own. A benefit of being one of the few children born each year to his pack... well of sorts. Often times he hated being alone, but he also knew it was for the greater good. The less people that knew him... that knew about the secret power within him... the better it would be for both him and them. He wouldn't have to worry about passing the power on to anyone unworthy and as far as they were concerned it meant that they remained innocent. His solitude was broken however by a young Hufflepuff's books hitting him.
He rubbed his head where a book had hit him, a glower on his face. Shouldn't the kid know what his bag is doing?
"N-no, I'm sorry, really," Fitz tried, because he meant it and he felt right awful about what had just happened, even if it hadn't necessarily been his fault. As he gathered up his stuff, his broken bag lying limply on the floor, he said, "Please, let me make it up to you. What's your name? I'll...I dunno, I'll figure something out."
It wasn't like him to let his blunder go unchecked, so he would insist at least once more, although the boy certainly seemed resistant to any sort of interaction, never mind one that involved the badger boy apologizing.