Hey fellers I've got a bit of a juvenile question. I was cleaning some of my guns and talking to a friend who is an armorer in the marines. Anyways he noticed that I was using my finger to spread the oil around and told me if they got caught doing that they were usually punished. Said they hammered it home that to lubricate use a patch to apply the oil so your fingers don't cause the metal to rust. What are your thoughts on this? Just curious.