basically posting in useless threads I think is the reason for me that is.
I admit to going on NS during lectures like once a month, but only if the professor is talking about something boring like early modern India. a lot of my classmates are on facebook or playing counterstrike (wtf?) for the entire class too, which is way worse.
this past summer I barely went on at all, like once a month. why torture myself with skiing news when I can't actually ski? anyhow I was busy riding my bike, and earning money.