"Once upon a time, there was a doctor who ever so loved his work; his work loved him too. The patients called him 'Brother Tim.'
One day, Brother Tim was walking past the corridor when he heard a sound from the room on his right:
"Please help me! There is a person inside my head! Get him out!"
The voice cried ever so loudly; soon, everyone in that room started crying:
"There is a person in my head!"
"I can hear his voice!"
"Cut my head, get him off!"
Brother Tim as a young doctor studying psychology felt troubled. Troubled enough that his soul was crying out to him, 'What's wrong with them? Why would someone enter their heads? I should help them.'
Without a moment hesitation, Brother Tim steps into room, knife in hand.
'I'll open their heads and kill the person inside!' he told himself.
Going to the person next to him, Tim thrusts the knife in her head; stab, stab, stab-bit-DI-do. Her head opened, but there was no person inside.
