Avoiding accidents

A while back I was sitting in my Troopy listening to some music with a newspaper on the passenger seat and my reading glasses resting on the dash.After a while I could smell something burning and I could not believe when I realised the newspaper was smouldering--what hadd happened was the sun was shining through the windscreen and had focused on the nespaper through my reading glasses and started the smouldering.I hate to think of the consequences if I were not in the vehicle.Iknow it is very unusual but I can assure you it can happen and I don't have the "coke bottle" type glasses either.From then I never leave my glasses uncovered in the car and it may be good advive for others asw well as we do most of our travel in the hot weather.This would probably also apply to drinking glasses as well.