Worker learns his lesson when he finds out who the old man he has been pestering really is 

Apology

Jeffrey knew that he had to apologize very quickly if he wanted to keep his job. He had never even stopped to consider that the elderly man could have taken up the cleaning job to make sure he wouldn’t be alone with his thoughts and grief. Jeffrey felt an extreme feeling of guilt for the first time in his life.

He walked up to the old man and apologized for his behavior.