Working in a prison, I have yelled at both inmates and staff. Never a proud moment, but sometimes, I have no choice. As I age, I am much more cutting than loud. For an example, if an inmate gets disrespectful, I will say, "Let me remind you of our relationship." Then I make them turn around and pat search them in front of everyone. As I do it, I lecture them on respect and how I always show it, but need to receive it back to continue that relationship. If the inmate shows respect moving forward, we are fine and I never, ever hold it against them. We all have bad days, but unfortunately, I need to be the alpha occasionally.