It was happening in a hospital..

It was happening in a hospital that ICU patients died in same bed every Sunday at 11 am....Doctors thought it is something Super Natural.. A team of experts from all over the world was formed to investigate the case... Next Sunday few minutes before 11 am all the doctors and nurses stood near the bed and start observing.... then suddenly "A Part Time Sweeper" entered the ICU, Unplugged the Life Support System of that bed and Plugged in his Mobile Charger!!!