"No," he says, arms crossed and defiant. You should have expected this, Optimus. You really should have. "She's a member of my crew. He's a Megatron, but he's not our Megatron. Which means that whatever responsibility you think you have to beat his face in doesn't exist."

So there. He's quiet for a moment, and then turns to Megatron because, hey. He's got an idea.

"If I wanted to punch you really, really hard and wanted it to really, really hurt - where would I do it?"

Asking Megatron where to punch himself? Yeah, this is a good day, and Rodimus can't help the smirk that's spreading across his face.