Ok, tonight I was at Barnes&Nobles with a couple of my classmates. We were sitting in the coffee shop reading Unte Reader with all the other Leftists (kidding!) Anyways, this guy walks in, and immediately my spidey sense starts to tingle. He kinda walks around the coffee shop and looks around a bit and then leaves - I was of course eyeing him the whole time. About 5 minutes later him comes in again. This time he draws out of his pants pocket a small white plastic spray bottle and starts spraying it around the room - trying to be...