Countless times the smell of smoldering cotton has gotten my attention when the welding hood was down. One of the mechanics I worked with when I was an apprentice always wore a starched uniform. Looked so uncomfortable to me. "Think about it. Welding sparks just bounce off instead of getting hung up and burning their way to you." he tells me. He was one of those "Measure once" kinda guys. Always fit the first time. I had some good mentors :D.