Seamus frowned and tossed the stone up and down a few times, "Yeah, he's crazy, that much is bloody obvious. I dunno about more experience with violence though, last year was a pretty shite time for most of us here at Hogwarts. I've been on the receiving end of a fair bit of it... but don't worry about that. I'd happily change that if he shows up."
He grabbed the stone out of the air and tossed it hard against one of the trees nearby, receiving a nice little 'thunk' noise for his effort. Seamus understood what Roth was saying, and that as an adult at the school, it was probably Roth's job to try and talk Seamus out of confronting a psychopath regardless of being counsellor, but he didn't care. If he ever laid eyes on a Death Eater, Seamus wasn't going to hesitate...