I once worked in a butcher shop on Saturdays. My bosses were one short chubby guy and a tall broad guy. Best of buddies, they worked behind, in the workplace.
But they wouldn't talk. They would yell. Loud. Not out of anger, but that was just the way they communicated. Even me, who only worked there 1 out of 6 days, started to yell automatically whenever I got in the back.
The most fun part was when a customer came in who had never been there before.
Best one was when the short chubby boss was in the back, hacking up some meat, while talking/yelling to his colleague. I was used to it, so I didn't pay much attention to the yelling and chopping. The customer however, was severely shocked. Fully panicked, she asked me if everything was alright, if we needed the cops or something. She still didn't look convinced when I told her it was normal for them to be yelling.
Afterwards I found out that the discussion they had was about ducks.