Dear Loving Overseer,
Had no real expectation of fooling you, Boss. Heard you can read minds, see through walls, all kinds of otherstuff and that's just easy for you; if you work at it heard you can do darn near anything.
So I had no intention of even coming within 43 Urists of the fortress you claimed. It just happened. I swear, day after day I thought to myself, right, I'm never going there, never.
Then suddenly your fortress is what I can see ahead, along with a good number of other dwarves around me, none of whom I'd ever laid eyes on before. Did I travel with them? Seems I can't remember anything about the trip or any dangers we may have passed. That's some mighty and mighty strange power you got there, Boss, just glad you decided not to let those dangers see us, like you didn't let us see them. Seeing as how I never intended to come here, must be your will that brought me in with the rest, no? Well, think about it some, and if you find out who it was if it wasn't you, well know that they're my enemy too, even more than yours maybe. After all, I don't want to be here any more than you want me here, but here I am regardless.
So here's the thing. Seems it's only sleeping folks who tempt me; I find I can go years without ever even looking twice as one of my fellows - so long as they are able to look twice at me. If you want, grant me a burrow that doesn't include any sleeping quarters, maybe not the hospital either. Heck, give me full run of the rest of the fortress, and so long as everyone sticks to the places they should sleep you'll find me one of your loyalest workers; I won't even go on break. Would be good for you and me both though if you used some of that power to occasionally knock out a chicken or something, and give me a bit of a break to keep me limber and fast, if you know what I mean.
Oh, and about the name you asked about... You know you'd find me. I knew you'd find me. And I can't even seem to get out of sight of the area you control, so. Just consider that another sign of respect, Boss. I hoped to keep this on a loving and friendly level after all, and I knew your eyes would be on me, sooner or later. Just another way of showing you respect.
Urist McBloodsucker, or any other name you want to call me.
Seems like long as you're calling me names, I'm still alive.
And that suits me just fine, Boss.