The Rover should not have (spoiler)
The Rover should not have smushed the cute little alien lizard. I realize it was supposed to be funny that it was not only ignoring the life forms, but deliberately getting them out of the way of its picking up rocks. They could have dealt with that some other way, however, like having it throw it farther away.
Semper Contendere Propter Amoram et Formam