It's basically "Good Evening, Mr. Stefano" in Italian I think
I think he was referring to the fact that he's (unofficially) part of the mafia, because "don" is how you usually call mafia bosses (it's also a sort of noble title but it's not used the same as mr., that would be "signor" Stefano).
Yea I figured Mr. wasn't exactly right but I'm not sure if there's an exact English translation for 'Don'. Your Grace? Your Majesty Stefano? lol
No idea lol, let's just call it Don
While "Buona sera" means good evening, "Don" is the title of mafia's godfather. Like "Don Corleone" from "Godfather" movie ╮(￣▽￣)╭
"buona sera don stefano"
what is that is that his name?