When I worked at the cannery, which was right on the salt water, I was doing some repairs to overhead pipe brackets down on the wharf.
Seeing as I was up on an extension ladder welding, I had a helper that was taking the measurements I hollered down to him and cutting the gussets for me while I welded them up. I ran out of rod and asked him to run back to the shop and grab me another 5# can of "6011 Rust Rod".
He wandered back a while later and said "I couldn't find any more Rust Rod, is regular 6011 okay?" Friends, he was dead serious! I didn't have the heart to tell him so I just thanked him and said the 6011 would do in a pinch.