On a less humourous note, some years ago there was an ATCO in a tower 'somewhere in southern England' on his own manning TWR/APP after midnight. No traffic expected immediately so he decided to go downstairs for (I think) a cup of coffee. He slipped on the stairs and broke his leg and was only found some time later when an arriving aircraft, unable to make 2-way contact, called the ATCC who called the airport duty officer.