Donna looked at the snake, "Donna." She would say no more to him, she was certain he was one of the people the Doctor didn't like, if only because he was a snake.

((Prejudiced? Yes!))

She had seen Andrew and Märet change so she knew who they were. She moved her legs slightly to allow them to take shelter beneath her, "It's alright, I'll protect you."

Of course she said this with no thought to who would protect her.