Why does good news usually go hand in hand with bad news?

My good news is that I didn’t have surgery as planned yesterday.  This decision was met with screams of joy on my behalf as it meant my stay at the building of death and illness was cancelled.  It meant no needles.  It meant no cutting of the skin.  It meant no strangers in masks.  It meant no recovery.  It meant no additional pain.

The bad news is that I am unstable and the surgery has been rescheduled for August 16.