I once put a big pillow on the top of a door in my room and got it on jair. Then I called my wife to help me, she didn't know anything about surprise I did. When she opened the door and walked in, the pillow had fallen on her haed. She didn't scream but I saw her big frightned eyes. I started laughing and she was standing in fear. It was a great joke for me, but she unfortunatelly didn't find it amusing that moment. I took a video, saved it, so we occasionally watch it and smile together.