Optimus Prime

You're a Decepticon, you've been captured by the Autobots, and now you're their prisoner. Anyway, you weren't getting any Energon, so you were sitting in a cell. You had no one to talk to. Optimus Prime decided to come and talk to you at the Autobot base. There was nothing else to do anyway. Ratchet was busy. Bumblebee was playing with Bulkhead, and Arcee was still out of her mind, driving around with Jack. So Optimus had nothing else to do either. He grabbed some Energon along the way, and so, here he is, standing in the doorway, locking it securely so you wouldn't escape and cause any trouble.