[Loki raises an eyebrow.]

I've been told often enough that fresh air is good for this sort of thing.

[He's not so sure about that, but he has noticed a certain utility to exercise that cannot be denied.]

Fair warning, Gregor. I doubt I am any sort of good housemate.

I keep irregular hours and at times go for weeks without sleeping, at which point I become increasingly irritable until I finally succumb and sleep for days on end. I undertake projects at my whim which may produce horrific smells, maddening sounds, or other effects too strange to catalog. I am given to periods of deep brooding or manic activity, not to mention fits of temper where I sharpen my tongue on whoever is convenient. I am equally likely to wish to invite you out for dancing for no other reason than a good mood, or attempt to set the house on fire because I've decided I've come up with a better design for a stove.

Oh yes. And there's a large group of people that wants me dead.

With all that in consideration, if you'd still like the second upstairs bedroom, you're most certainly welcome to it at your convenience.