Horror story turns into a joke !

This story is not mine . I read it in kannada daily newspaper . I liked it very much . So I am reproducing it . It is a hospital . It has an ICU too . Every Sunday , exactly at 8.00 am , one patient dies at the ward . Everyone were scared by this . The deaths are not because of deterioration of health condition of patient ! Someone suggested it might be the work of a GHOST ! So on one sunday , doctors of hospital assembled and decided to crack the mystery . Likewise , everyone hid in ICU waiting for the clock to strike 8 . Clock struck 8 ! ....... .......... ........ Then came sweeper Muniyamma . As soon as she came , she unplugged one of life supporting systems and put her mobile to charge !