Was that 'hello' for him? Xavi hadn't greeted the professor and he ducked his head a little bit. He should have greeted her. It was rude not to. Now it was too late, so he nodded to acknowledge her greeting and let it go.

He stopped feeling bad about not saying hello when she made a big show of 'putting on her elephant ears' like they were five year olds. Even his nine year old sister would have made fun of the professor for that move.

Alexander Graham Bell. Easy. Everyone knew that. It was like showing a picture of Bill Gates and asking what he did for a living. Since the correct answer had been said already, and in the interest of earning house points, Xavi scoured his brain for any random information he might have about AGB and raised his hand. "Wasn't his wife deaf?" he asked. He'd seen once a cartoon about the man, and either his child or his wife or somebody was deaf. Maybe.