Last night when I posted my comment two comments up, I was on a Mac because it had photoshop creating my current avatar, and my portable hard drive was on a nearby PC torrenting anime. The lab closed, and the two staff members were leaning in close to the PC screen to figure out who it belonged to. I walked right between them, leaned up close as if I was looking at the screen too, and said "interesting..." and scared the living daylights out of them.