Roc Doc
2A SNBI
Means and methods is still a thing i guess in any industry.
I'm sure if I was doing something unsafe or making it hard for the other trades to get their shit done, they'd have had something to say to me, but I never dropped anything and knew who to talk to before system tuning, setting stage, etc., there is a process and timeline for any event production, it's much like building construction, you can't install the electrical before the foundation, etc.