Rover steps back and puts his hands on his hips, now very indignant. Clearly these two don't understand a thing he's saying! It's not like he's speaking Dutch or anything.

He can't emote, but underneath that cheery blank fishbowl face, he's scowling deeply. If they hurt Miss Shuttle, he'll be angry with them, and that just... won't be a good thing.

He lifts his leg and kicks Ratchet.

Then falls over.