Did I see a UFO over golf course?

Okay, so you're skeptical about UFOs - as we all should be. But I shall never forget the time I took my dog for an evening walk - in total darkness - and saw this strange, bright light beyond a wood and over a golf course for about a minute. I saw it make sudden, very fast, and acute changes of direction several times (eg 30 degrees) before shooting off. It was obviously low, quite near, and not a star or satellite because of its erratic movements. It was all too fast for a helicopter, and there was no sound to be heard. I shall never forget it. What do you make of that?