I remember when I was doing some CPL training in the UK a brand new Piper Arrow arrived on the flight line. Everyone was very keen to get their hands on it, only problem was it had a very loud and annoying gear horn that sounded throughout all stalling exercises. Engineering scratched their heads for a few days to try and turn the volume down, instead they came up with a great idea 'lets just disconnect the siren!!'. This was done and on the very next flight a beautiful gear up landing was made
New engine and a bit of structural work was then required on our nice new 10 day old arrow