"Well, you answered the first question yourself; what he is doing here, is living here. Why is quite frankly none of your business, but to head off any more incidents between the two of you I will simply say, this is not the first time Ethan and I have shared a flat, and this makes it much easier to keep track of him, period." He sipped calmly at his teacup, leaning against the counter and shifting slightly to get comfortable. He had a feeling this would take awhile. "Ethan is, at the moment, assisting me with a bit of important research."