His wrench will not slip down past the nut and damage the return lines.
Also much more common to have extra sockets and extensions laying around than crowfeet.
I wonder if it was the same guy after he warmed up putting a Snap -On tip on my Plomb speeder, it certainly isn't that good.
My sad paint story....this box had surface rust on the outside. I figured I'd drop it in evaporust. Maybe 2 hours later, I had a look, and all was well, but after a wash, there was one tiny spot of rust stuck to the corner. So I dropped it back in. Gave it an hour, and the spot was gone, but the paint was jelly. Most of it washed right off

inside and out. No part of the inside was rusty at all....Maybe some kind of oxide primer or coating on the metal? Well here's how it looks now;
My WF-23 copprclad ~I swear that pic looks better on my phone