Sure glad that I have always made sure my eyeglasses carry a certain safety rating even if it is not the highest. I was trying to salvage a rim off of the combine earlier this weak and the jack/bolt combination kicked out and the bolt caught the corner of my right lense. The bolt left a little rub at the the extreme right edge of the lense. I would hate to think what would have happened had I not had my glasses on or that they did not carry a minimal safety rating. I am not the guy who tempts fate by doing things in a haphazard manner and I have used the jack/bolt method to do other straightening but this was the one time you always have to be on guard for the other times that kind of job was done without incident. By the way after playing around for a couple of hours the bolt incident was enough to call the salvage yard for another rim. Looking at it afterward it was never going to straighten enough to hold the tire bead anyways. Scored some finds at the local scrap yard so the week is starting to even out.