Thanks for the reply Handlebar,very interesting and thorough.One time (no not at band camp)at a battery plant,I was doing a job, in the Acid house(where the sulfuric acid was housed)a fine mist hung in the air.It was not until the rains came that an engineer told me that the rain water droplets combined with dry acid on my coat(which was cotton),and that was the reason half my coat was laying on the ground in pieces as I walked back from coffee break,and the other half would be gone by days end.Needless to say I was given a appropriate clothing after that.not cool!but the price we all pay for.......