Blissful Ignorance by Rob Rek  - 
The main subject has subscribed to the old axiom so completely, he has failed to notice his own fall from the mortal coil, decomposition, and reclamation by nature.
Rather than address unpleasant truths, he remains ensconced in his chosen reality. His Bang and Olufsen noise cancelling headphones eliminate the noisy distress of the world beyond and produce superior sound quality to soothe his jangled nerves.