While working overtime I heard some banging and went to investigate. I opened the comfort room at our meeting room, I was shocked at what I saw. Our boss and his secretary were half naked having sexual relations. I said to my boss "Oh, sorry sir" and closed the door. I immediately packed up my things and left the office.
I am wondering what behavior should I adopt regarding to my boss, the secretary and the HR? I am concerned about the consequences of reporting or not this incident to HR. Is this incident worth be reported to HR? And if so, is it putting my career in this company in danger?