1. Just because you have been sitting in the same spot in the parking garage for 10 minutes waiting for someone to leave doesn't mean you get to take a spot that someone else has already asked for and drove across the garage to get. It means you're lazy and you don't feel like moving to search for a place to park.

2. Clean off your desk before you leave class. It is really gross to get into class, sit at my desk, and see it covered in hair, grease, eraser shavings, or whatever else you decide to leave caking the desk. It isn't that hard and only takes a couple of seconds.

Let's all use some common sense.