This is how I described it on John's blog:
'Re the other subject, I’ve certainly seen a UFO. It was way back when I was a teenager. My brothers and their mates and I were hanging around on our front lawn after school one afternoon, when one of us saw something. It was a light off to the south-east, just above the height of the hills. It moved steadily along, then disappeared. It could have been a helicopter, but certainly not a plane. We never heard anything about any other sightings of it, and I think we just wrote it off as ‘one of those weird things that happen’.