Here's another one.
Bill & I visited Alcatraz, the famous abandoned and haunted prison on an island in San Francisco Bay. I've been places where I thought I felt the presence of ghosts, but as we toured the prison, I didn't get that feeling. I was a little surprised and disappointed.
Then we went down to the basement, where there was a solitary confinement cell open so the public could go in and see it. Bill walked in and said, "Look at this," about something inside, and I started to follow him, but when I got to the doorway, I froze. It seemed I couldn't step over the threshold. It was a weird feeling, and I shook my head and said, "This is silly," and forced myself to go through the doorway. I can't describe the feeling. It was probably a panic attack. All I could think of was getting out again. I stepped back outside, and I was immediately back to normal.
Those of you who know me understand that I'm not normally fearful, nor am I claustrophobic. I toured a submarine in Philadelphia with much tighter spaces with no problem. I don't know what it was, but all I can think was that I was picking up the accumulated vibes of the panic of being shut in there that hundreds of inmates must have felt. It was a very strong feeling and totally out of character for me.