Act 1: The Disappearance
Despite your initial misgivings about Bob, he turned out to be the perfect lab partner, always on time and prepared - that is, until he completely missed yesterday's lab, and you had to do it all by yourself, and you hadn't reviewed any of the course material at all, and it was a total disaster, and how could he do this to you?
And now, it's been a whole day and he still hasn't responded to any of your messages. You're getting a bit concerned - has anything happened to him?