I have a colleague who I've been friendly with who works in a different department and recently, she's started really criticizing others we work with (none of whom I'm close to, personally) but the tone of our coffee break chitchats has gotten very negative and I'm not sure what to do because I really am feeling uncomfortable with the negative gossip. I am not really sure what's behind the gossip since some of the people she's talking about don't really seem to be close to her but we don't work at a large company and so I do run across the people she talks about from time-to-time and its starting to color the way I look at them. How do I tell her I'm not comfortable hearing this stuff? How do I get her to stop? I really don't care about people's personal lives in a workplace context.