I worked shift work for 30 years. Hated it. Didn't like day turn at all. To many bosses.
Yeah, I've had to keep people off my machines as well, but they really are my machines now, so I can lay whatever language I want down on them, "keep your f***ing fingers off my f***ing machines or I'll pound the s*** out of you with this tire thumper."
Things were a little more, um, "reserved" where I was; language like that would've had me bouncing my butt on the pavement. In my R&D facility, er, house, you have to say what you mean, and if it gets a little salty, I know there's some urgency to it.
Oh, I got talked to a time or two