During May 1978, while I was on my very first OE, I was staying at the Shelbourne Hotel, Dublin. I felt lucky when told I was the only one on the top floor. This was not true as I had seen another room with lights on.
Next morning I proceeded to the lift to go down for breakfast. While waiting its arrival a man came out of the room that had been lighted the night before. He asked that I hold it for him as he just had to grab his coat. Down we went and we exchanged the facts that we were both visiting Dublin and hoped each other would have a pleasant stay.
Outside the dining room this gentleman was met by others and escorted to a screened off corner of the room. He came up in the lift again, after breakfast, with no exchange of words.
About mid-morning I went to the main entrance to await the courier I was to join for an all-day tour of the city. Before joining I noticed the hotel lounge full of people with cameras and note books. I asked one of the staff what was going on.