Has anyone ever experienced one of these devices? My neighbour has one turned up to the maximum and, depsite polite requests, won't turn it off or dowm. It emits a really high pitched screech every few seconds and they have it turned on 24 hours a day. I called the Council and their noise people came out but they said it wasn't loud enough to be deemed a statutory nuisance. Apart from climbing over the fence and pulling it off the wall, does anyone have any ideas how to deal with this?