I recently took a picture of my boyfriend. He'd fallen asleep on the bed. My small dog was also asleep there. The picture was taken from my camera phone. When we looked at it together later, there was another person in the picture. Ron actually asked me how I got in the picture. He said the profile of the face resembles me, and I suppose it does in a way. To me the person looks like a 10 year old boy. I took the picture from across the room. There were no mirrors or any objects that would have reflected an image onto the picture. We recreated the scene and there was no way that the person was an illusion from blankets and pillows distorted into an "image". The angle of the figure was positioned in such a way that it was propped up on it's elbows facing me while I took the picture.

I later looked at the picture with another person. She said she saw the small boy too. I didn't give her any clues about what to look for in the picture.

This was not a hallucination or mass hysteria. I'm pretty sure it was a spirit who had an opportunity to present himself, for whatever reason.
This was a solid form, not some transparent ghostly shaped apparition.