There were probably several ways Sybille could handle Makara. He was clearly in need of help, but that didn't excuse him from the way he treated her. She didn't see why it mattered if she was rude or cruel, she was still in a position of authority and she would damn well make sure he learned to respect that. He would probably never respect her as a person, probably, but Sybille didn't care. He would not speak out while she held power over him, at least.

She flicks her wand, the door opening smoothly. She places the wand on her desk, lacing her fingers together and remaining silent. Hopefully the boy isn't too far gone and can at least understand that's as much of a welcome as he'll get.