My experience is, never state your powers. People already know your reach, but sometimes, they don't. It happened to me in a multinational ecommerce giant where employees started to feel they were bosses. The relationship with the managers started to scalate badly, there was no respect at all. The feeling back then was "what, are you gonna fire me?" and so on. Projects went crazily bad and devs blamed management, when management was totally crippled. Instead joking or stating my power, I went to my boss and asked the head of the guys causing problems. My boss asked me if I could just let it pass, and I did it, 4 times. Until I said it was me or them. Then my boss asked me to do what i wanted. What I did, instead of firing them, I moved them out of the team to a newly created useless team. They were shocked, because I didn't fired them. They bragged about they now have their own special team, lmao, i remember how they've believe they gonna change the company, until 2 months of nothing todo from their side, no other teams wanted them, no other teams wanted even to share projects with them. They came back to my teams begging to join again, they will do everything is asked for, no more nagging, etc. I think it was better than fired them, to be honest.