They all have them, polishing the Ships Bell was a duty for the jr. QM's. You had to bell and announce any high ranking officer by the bell and 1MC announcement.
I never had it on my qualification card.
I did get to scram the reactor and be bad guy during a security alert, RX scram, periscope depth, snorkel with delayed RX startup and run on the Emergency Propulsion Motor (DC electric) Ships Diving Party training. We got the security, RX scram, diesel start-up/shutdown and reduced electrical drills out of the way. The Security Alert Team had a hard time finding me, I just went to my rack curled up in the fetal position and closed the curtain just enough to hide.
cq