Cass sighed, he still wasn't convinced, but then he was a Slytherin - he'd seen the things she'd allowed the Inquisitorial Squad to do when she was headmaster, he'd just never seen it as a problem at the time.
Letting his hand move around Percy's neck, he pulled him towards him. 'I still say you're far too much of a Gryffindor,' he said, leaning his head against Percy's. 'Please promise me you'll be careful, at least.'