from previous-

-an  aircraft  carrying  many  mad  people  aboard  with  two  pilots  was  full of  noisy  commotion , the  pilot  asked  his  co  pilot  to  find  out  what  was  happening, all the  mad  patients  were  playing  football  as  one  of   the  serious  ones  sat  reading  a  book in a  corner  seat, giving  the  wise  mad  patient  to  maintain silence  the  co  pilot  entered  the  cabin within minutes  the  noise  was  replaced  with  silence, again the  main  pilot  sent  his  junior  to  see  what  was  happening, there  sat  the  wise  mad  patient  reading  his  book  who  had  asked  his  colleagues  to  go  out  and  play