Any head of Slytherin House is likely to come off as an anime villain at some point or another, and certainly to some of the students coming in for help, Murdoc would seem that way. But Dirk's seen Murdoc being embarrassed by Bro. By now, he's immune to any threatening vibes from this Professor, whether intentional or not.

"I have some," he admits. "Figured I should get a second opinion before I made anything definite."