Turner Classic Movies showed Alfred Hitchcock's "The Birds" last night at midnight. My wife recorded it and was watching it this afternoon.
During the the nerve-wracking final scene, when the characters are trapped in the house by the sea, I snuck up behind her chair, and crossed my arms, and then slapped each elbow with the opposite palm at the same time.
If you've ever done this, you know this makes a creditable flapping noise.
THIS IS CALLED BEING TOO CLEVER BY HALF.
Patricia jumped 20 feet, and now I owe her a week's worth of foot rubs, plus back rubs, and a lot more, and then she will - maybe - decide if I am allowed to live.