Ever been busted GC'ing at work?

I work at the Information Office on campus, so the Internet's a necessity. I'm pretty sure they're monitoring computer activity, but I've been doing it for over a year now..and they haven't busted me yet.

My boss, on the other hand, knows that I am forever on GC and AsianAvenue. Though she'd rather have me to more productive things, as long as it doesn't affect my customer service, I'm okay.