Are you worried that you've written something that starts out "There's this guy at work who..."
?
You know that you can see all of someone's posts, right? You just click on profile at the bottom of one of their posts, and on their profile under "number of posts" you can click on a link to "see all of X's posts".
Does that help any?
Edit: Actually, now that I think about it, maybe HE wrote something that starts with "There's this guy at work who...", maybe you should look at all of HIS posts so you have something to say back if he complains about something you've posted! 