My wife used to work for one of those “paranormal investigation” companies. She saw it as a bit of fun but lots of people took it very seriously. One night I went along to a spooky old Manor House to see what it was about and I had this digital camera with an IR night mode. I took this one photo during the night and you could see a ghostly figure standing in the background. The camera used long exposures along with the infra red to get the night shots so I knew it wasn’t really a ghost but I showed my wife, she showed the organisers who shared it with the “community” and a few months later I got calls from a paranormal magazine wanting to run the picture.
Hanging out in old houses at 3am is super fun though and I enjoyed it a lot.