Supernatural!!!

There was this case in the hospital's Intensive care ward where
patients always died in the same bed and on Sunday morning at 11a.m.,
regardless of their medical condition. This puzzled the doctors and
some even thought that it had something to do with the supernatural.
No one could solve the mystery as to why the deaths took place at 11
AM.

So a worldwide expert team was constituted and they decided to go down
to the ward to investigate the cause of the incidents. So on the next
Sunday morning few minutes before 11 a.m., all doctors and nurses
nervously waited outside the ward to see for themselves what the
terrible phenomenon was all about.

Some were holding wooden crosses, prayer books, and other holy objects
to ward off evil........ Just when the clock struck 11... Santa Singh,
the part-time Sunday sweeper, entered the ward and unplugged the life
support system & plugged in the vacuum cleaner.