He vents a heavy sigh of relief as Megatron leaves — and even without having caused any major damage. (Starscream doesn't count.) He spends just a couple seconds staring after their departed leader, half to see if he won't suddenly come tearing back for more, half idly wondering if he prepares those speeches.

"Yeah, this time." He rubs absently at his chestplate, near the missing shoulder joint, before finally turning his attention to Starscream to see if Knock Out might need a hand with him. He might be down an arm, but he still makes a decent medic assistant.