I think I've told this one before but it's worth repeating.
When I was in college I worked third shift for LTV running a huge CNC Mill making parts for the Space Shuttle Auxiliary Fuel Cell. Huge pieces of aluminum where we were cutting material out leaving spars for strength. Running a 2 inch ball nose end mill at 3600RPMs at 100 inches a minute. Threw aluminum chips out that look like a snow blower. It required constant coolant to keep the aluminum from gumming up on the end mill. Anyway the machine was running low on coolant and I had to shut the machine down to fill the coolant tanks up. We had a light on top of the machine like on old style police car we turned on that started blinking. The guy whose job it was to fill the machine saw my light turn on and he turned around and walk off. I sat there for a few minutes waiting on him and when he didn't return I said fvck it, went and got the tanks and started filling the machine myself. About this time I see the guy is watching me fill the machine and didn't do anything but watch. I finished up made sure the tanks were wiped down, clean and put it back where I got it. Guy sat and watched me the entire time and walked off when I finished. I didn't think anything about, went back started the machine back up and went back to work. About 30 minutes later here comes the Union Steward, my supervisor and the Shop foreman They told me to shut down the machine and come with them. We sat down in an office and they proceeded to chew my ass out, write me up and threaten to fire me because I had the audacity to take it upon myself to fill the machine up with coolant. It was that lazy POS job and I had to wait until he got good and ready to do it. They didn't give a shit he saw I needed coolant and decided he had better things to do at the time. That wasn't my first time of having to deal with the union mentality of laziness and slow work but i swore then and there I wouldn't make a career of it. As soon as I could I left that really good paying job to make less money working in the business world. One of the best decisions I ever made.