This was interesting, watching Merlin toy around with logic. He nearly said something derisive about servants before he remembered that Merlin had basically agreed back on as a favor to him, and he should try not to offend the man too badly. "Right. Beginning to see what they're teaching you in that school of yours." He still sounded annoyed and like he didn't quite believe the concept.
"Still. It's all theoretical until I see magic used for good."