I used to work as a porter in the conference section of a Gatwick hotel. It was on the second floor, and when everyone went home at 5 or 6pm, the entire floor was deserted and silent. My late shift finished at about 10pm, and my last job was to lock the conference rooms and switch the lights out for the whole floor. Where were the master light switches? They were right at the end of a corridor, into the concrete stairwell and into a claustrophobic cupboard, where after pulling down all the massive switches, you had to walk back along the pitch black corridor, past all the locked doors (I'm sure I locked them all, I'm sure I did...). Try as I might to think of nice things, The Shining always popped into my head, especially the twin girls and the woman in the bath. It was a long corridor, but I couldn't run, because that would make imagination real.