Circles of light on pavement without beams

I don't know if this qualifies as a UFO report or some other strange phenomena but back in 1992 a friend and myself had been to a concert on a coach and were dropped off outside of our village to walk home.  (I can't remember the exact date but I may be able to find out.)  We walked into the village I think it will have been about 2am and we went our separate ways.   I was walking for a while down a street which was well illuminated by streetlights and nobody else was around at this time when a circle of light appeared on the pavement in front of me, it was about 2 feet in diameter.  It was as though someone had held a really bright light above me almost and shone it onto the pavement.  Bear in mind the street was already well lit up and so this had to be a very bright light, but there was no visible beam just the circle of light.  I didn't step into the light but I did stop and look behind and up into the sky wondering what had caused it, I didn't see anything and when I looked back in front of me it had gone.  Meanwhile my friend walked to his home which has a dark farmyard and he too saw two lights on the ground without beams projecting them.  I thought no more of it until the next day when I mentioned what I'd seen to my friend, who was relieved that I had mentioned it as he wasn't going to say anything thinking nobody would believe him.  We have talked now and again about this for ten years now and still can't think of anything that can make a light like that.  Our friends don't believe us and say we were probably drunk etc, but I can assure anyone that we had not drunk anything at all.
We will encourage the witness to establish the precise date of the incident.  PD