The sorrow Hermione understood. Denial she got. Anger made sense. But laughter, that just didn't seem to fit this particular situation. Hermione heard the same words come out of Percy's mouth that Ginny had heard, but she didn't see the humor. People were often capable of different things at different points in time.
"Ginny?" she turned and looked at Percy. For the first time in a long time Hermione Granger didn't know what to do. She knelt down beside her friend and put a hand on the other witch’s back. She didn’t say another word as there was nothing to say. Zacharias Smith obviously had some explaining to do, but to laugh at the situation was something Hermione couldn’t comprehend because it simply was not logical.