UFO Sighting in London, England on 1977-10-16 16:38:00 – Large ball very bright light spinning rapidly hovering ,zig zagging all at very high speeds

I lived on top of a shop i was on the balcony kicking a football when i looked up the cloud was low and moving steadily, as i kicked the ball up something caught my eye just to the left, it was a very white bright light spinning at extreme speed at first just hovering then it started to zig zag at extreme speed at that moment i called out to someone have a look at that moment it moved towards me hovered then from a standing start took off at about 90 degrees at speed i have never seen in real life , no one believed me everyone thought i was mad even to this day i still get laughed at but i know what i saw and know it was real