That's when I remembered setting the phone to "do not disturb/send all calls to voicemail" before I left for last week's training. I did this to show some mercy to the people with cubes around me -- they get tired of the phone ringing and the Outlook mail notification going full-tilt boogie during the day if I'm not there.
So the dilemma that I am faced with today is: should I "accidentally" forget that one of the major sources of annoyance in my job is silenced, and leave it that way for the rest of the day?