Two years ago when i was sleeping, i had a nightmare. The nightmare is about my sis. She will always ask me to buy things at night(not mid-night). I remember when i finish buying things, coming back from downstairs because i live at level 8, the lift is at level 9 so when i was about to come down the stairs, a red 'man' ran out. 'He' was pulling one of 'his' leg. When 'he' ran to my side, 'he' pull my leg and bite it. I cried out. After that,i told my father about it. He told me that it is a GHOST!