"This Unit is from Earth, thus not an extraterrestrial, Optimus Prime."

Really, the only thing she is concerned about is that she only has one arm access to her weapons. But she's not going to voice that, instead focusing on what Optimus is doing.

"It is possible. This Unit did not take stock of the crea-- Cybertronian's size, it was bigger than this Unit and attempted to step upon this Unit." A pause. "This Unit proceeded to stab the threat in it's foot."

If she felt pride she would have sounded so proud right then.