Loki's just finished saying he works as part of a team when Tim looks up and sees someone in a metal suit in his living room.

His first thought is actually Thank God Feliks is out on a date tonight. Dealing with his roommate would turn this from a fiasco into... whatever's one grade worse than a fiasco.

"You're the tech guy," he says, flatly, and beckons like a sparring partner. "Nice work. Is the Ghost of Christmas Future out there, too? Let's get this over with."