I have had massive problems with my NDN's. Since I moved in 7 months back, the constant noise has been an issue. DIY with loud power tools every single day, music in house, music in garden, TV turned up if a music programme is on. Today takes the biscuit though. Usually he's out from about 8.15am on a weekend wielding his power tools. Today they already have the radio on in the garden and it's 7.45am FFS! Good job i'm moving soon!