Thundercracker spent those few minutes idly wandering around the office a little.  He didn't touch anything, just . . . needed to occupy himself.  Lest he started thinking again too much and possibly scare talk himself back out of this.  He managed to suppress a flinch as Knock Out came back in the room, but the look on his face for just an instant would give him away.  Still, he settled as directed without hesitation.