I was watching the movie Soylent Green and noticed in the opening scenes Charlton Heston is shown shaving with a DE (Black handle SS?)but before he puts the blade into the razor he rubs it inside a glass. I assume that this may have been a way to debur the blade. Has anyone every tried this or was it just improv on the part of Heston to show that he had to reuse a blade because of the state of the world? Just wondering.