[readyplayernull]

I lived in a haunted house with my parents. My dad is atheist and the most skeptic person I know. When we moved to this old house they fixed the roof and found jars with newspapers and hair inside. Apparently the woman and daughter that lived there practiced witchcraft.

My mother loved to go out with my aunts on weekends. One night while I was sleeping my father heard sounds of high heels in the corridor that had wooden floor. He got out of the room to check whether my mom had returned. There was no one. Being a skeptic he will never tell you that was a ghost.

At another time I was feeling depressed and laying on my bed on a side. Windows closed. I felt this kind of "slow wind" touching my arm. I actually felt better right after that.

And I also witnessed a nasty accident while watching thru the window that's probably too much for HN audiences.

As for a detector, get depressive people inside the house and examine what happens to them.