Explanations of the scientific kind are theoretically useful. But those who defend them strongest are those who have never had a personal experience of the paranormal.

Ghost stories are entertaining. I have had some personal encounters, mostly benign and interesting. But one of them taught me not to get involved further, without having a very good reason.

Some encounters are simply dangerous. And no, I won't talk about that one. I will state some indicators that a paranormal encounter is happening:

Seeing something, of course, and: Feeling a sudden wind or cool temperature; A feeling of unease or dread; And the best one: the hair on your back, or the back of your neck, feels like it's standing up.