Apollo had been making his rounds at the hospital for most of the day. This time around, his specialty was pediatrics, and he pushed himself as hard as he could to send as many of the children home healthy as he could. He never minded the work, but sometimes it weighed on him.
So when he mentioned he was off to see his father on his lunch break, the charge nurse told him, "Don't worry about us, you go and see him. Family is so important. Just, you know, don't be gone forever." And Apollo had laughed and promised.
He took the train to the closest stop and walked the rest of the way to Zeus' building, heading up once the doorman had let him in. When the elevator doors parted to reveal Zeus standing there, he smiled in return, accepted the glass, and said, "Hello, father. You're looking well."