fishmongers/butchers, inform me about what the field is all about.

Genuinely thought about the job before, but I'm also a writer. Study about it and all, I'm writing a story in which my main character is a fishmonger. Obviously I haven't committed to this field but I want an accurate representation of what it's like.

Already know how to filet a good amount of fish and use a meat cutter, thank god. But Questions. Like what are some norms/terms that only people in your field understand? Or what do you do when you clock into work, what's the routine? Basic food handling and etiquette. Some useful techniques or things you've learned. Preferences? Anything that grosses you out? Just overall what is the job like and your personal experiences with it.

You can tell me how much you hate the job too, whatever works.