My last job was a machinist working for a company which had its roots in Birmingham. Many will recognise the name Wigin Nickel Alloys, I worked for them at the Hereford factory.
Sometimes ,if work was slow, I worked pinning coils in the large pickle shop. Two days later my throat was sore and my arms red raw. The works overalls just rotted.
Must say the Health and Safety Laws put a stop to it and pickling became a safer occupation. Is anyone going to start a fettling thread for that was as bad.