B.D. writes: "I'm going to the opera. Seriously, the opera. Surely this is a place where I can finally wear a cravat, am I right???"
Answer: You know that scene in Caddyshack where Danny Noonan shows up at Judge Smails' yacht christening wearing an over-the top sailing outfit complete with ascot and captain's hat? It's hilarious because it's so utterly tryhard and reeks of desparate class tension.
If you show up at the opera wearing a cravat, you'll be that guy. Don't be that guy.