I live in South London in a third floor flat in a five story building, two floors above, two floors below. Being that I live in London I’m used to seeing people act drunk, crazy or violent; Especially at night when the nutters come out. But what I experienced two nights ago shook me to this very moment, so I feel I have to write it down in case my situation becomes more weird than it already is. Why did he choose my door!? Every evening after I’ve finished eating I watch a couple of Creepypasta videos online before I go out on the balcony to smoke a cigarette. I come in, lock the door and put it on latch.…