It's rude to leave a chat room without saying goodbye.
Ben has stayed up too late being online chatting and notices the time.
Ben wants to quickly get to bed.
Ben quickly tells the chat he lost track of time and has to leave in a hurry.
Ben closes out of the chat without saying anything and hurries off to bed.
Ben's friends tell him goodnight, and they leave on better terms.
Ben's friends think poorly of him for leaving without saying anything.