About 10 years ago I was living in the UK a few miles from Heathrow and near a motorway. I was working late shifts so I'd be walking home anywhere between 3 and

About 10 years ago I was living in the UK a few miles from Heathrow and near a motorway. I was working late shifts so I'd be walking home anywhere between 3 and 5 am. Once or twice in that couple of years I noticed it was totally quiet for up to a minute at a time. That was it: maybe two times in a a year! (I also often got stopped by the police, who wanted to know what I was doing _walking_ at that time of the morning. But that's a different story...) Coming back to NZ was a joy.