UFO Sighting in Bristol, on 1985-08-15 17:00:00 - Although transfixed, ive hardly felt compelled to much about it till now.

I was standing alone at the bottom of my garden, heard a throbbing hum and when i looked for the source, saw a doughnut shaped, dirty, yellow-brown cloud, that bubbled & spun (in the direction of something i now know as an accretion disc), above our neighbour's house. after watching it for, i suppose above a minute, it instantly vanished with a single, deep thump-sound. i've hardly ever mentioned it to anyone, except in recent years, maybe cos i've had no decent explanation. but i do now remember feeling quite impartial at the time. there was no one else with me to wonder at at it.