Suddenly important?

One of the things I value most in my workplace is that, unless I break something, I am barely disturbed. People wave at me and recognize me in the hallway, I even have some corridor chats every now and then - but in my office, quiet. Nobody comes, nobody calls, nobody bothers me. I can mostly work on my stuff. Today, however, I have had two over-20-minute phone calls (I hate long calls - keep’em short, to the point, end of story!) and at least four short ones, three people from the institute have come to request my help to do different things, even a couple of friends working on some of the Mexican Free Software conferences came to talk with me. Is this something boolean? How come they all dropped by or called me the same day? There must be a reasonable explanation.