One of the all-time sickies in the world today is the person who calls random numbers and lets the phone ring endlessly. These creeps are sure someone is deliberately not answering the phone and must be punished for ignoring them. Thus they will let it ring 40, 50 times. If the person is napping and finally answers the phone, concerned it may be important this sicko will hang up. It's amazing how many sadistic nutcases there are in the world, who have these kind of jobs.