Here's a great explanation for why people gossip at work

Even if you're a super-busy person with a ton of meetings and deliverables, there's a good chance you've engaged in some workplace gossip at least once in the previous five days. It's actually very natural; I think once you've worked at a place even a few weeks, you know the people who do it the best or the funniest -- and when you see them in the hallw…