If the organisation is big enough and dysfunctional enough, your absence will not be noticed for long periods of time. Just make sure whenever you are seen you have the appearance of being in a huge rush.
Be still my heart
> After 30 days, I became convinced that I was a forgotten, non digestible entity in the corporate stomach. No man ever comes over to ask me for anything - although I am but a Manager, and Directors roam the hallways like rabid hyenas, I am much too senior to all of them for them to attempt an attack. Every once in a while, the phone will ring, and an old acquantance will ask for help solving a problem - I gladly comply. Sometimes, I let the phone ring... but the voicemail light never comes on. They move on to the next target, under the false assumption that I am much too busy to be bothered.