On the way south to Petra I stopped at a castle in Karak that was used during the crusades. It is really well preserved and has many tunnels that run under the different parts of the castle which are open to the public to explore. For whatever reason there were only maybe a dozen people in the whole site when I was there which made for a sort of erie feeling as I made my way through the passages. I was in a pretty dark room at the far end of the castle and I heard some other tourists walking down the hall towards the entrance to the room I was in. For whatever reason, I said “Wah!” as they walked through the door, which made them jump and gasp. I instantly realized it was a stupid idea and regretted doing it, but fortunately the people laughed and no harm was done.