David smiled and waved, almost shyly, at his father when he saw him. It had been two years since he had seen his father, his hair hadn't been turning blue when he left and he had still been a snot-nosed little kid back then. When he saw Nacelle speaking to his father he knew that it would be because of the language barrier between them and he wasn't sure his father spoke Afrikaans, so he decided to go over and see if he could offer any help to either of them but when Hank pulls her into his office he stops and joins the rest of the class figuring that he is probably dealing with it better than David could have.