Adendum to Murphy's Law

Got to school early today, rushed through a few oral tests. It turned out that the first hour class was canceled. My computer is on some kind of fix so that it always prints things backwards and I just have to select something so that it doesn't do that. Any how, I got the thing all worked out. the Addendum to Murphy's Law in this case is that I usually get a piece of luck, like a class being canceled.