[For Yuuki's sake, more than anything else, he's lowering his voice to a sharp hiss.]
Yeah, we need more employees, and we're gonna get them, just not from him! Seriously, Yuuki, come on, where's your "dangerous person" radar? He's evil. [He nods with his head towards Sebastian, who is... currently standing back, pretending not to hear them with a beatific smile. The most evil, obviously.]