It was all Harry could do not to burst out laughing. He had a reputation to uphold, after all. So he tried his best to pout and frown as always, but inside he was being tickled to death. And it didn't help that Hermione, sat so invasively close on his left hand side, was in exactly the same state as he. She was locked in a death struggle with a fit of giggles herself. Harry could feel them inside her, as potently as if they were actually in his own chest, which only made his own chaffing mirth ten times worse.