fourth day of residency

I had such an emotionally draining and long day.  BUT at the end of my shift, while I was waiting for the elevator, there was this (7-year-old?) handsome kid who was also waiting with his dad, and wondering aloud where the stairs were.  I showed him way to the the stairs (but they ended up taking the elevator anyway).  When the elevator got to his floor, the kid turned around and waved and said good-bye to me.  It cheered me up.