Among all the names and place names that Verbal Kint copied from the bulletin board (such as 'Quartet Barber Shop' and 'Red Foot'), which one do you find the most interesting and least likely to appear in a gangster story?

Ha, this question is so interesting! Talking about The Usual Suspects, I could go on forever.

In my view, among all the names Verbal Kint "borrowed" from the bulletin board, the most fascinating and utterly out-of-place name for a mob story has to be "Barbershop Quartet" from Skokie, Illinois.

Why This One?

Think about it. In a classic mob story, character names, nicknames, or organization names usually need to have a certain edge.

"Redfoot": Sounds like the nickname of a ruthless gangster – maybe because he always wore red shoes, or simply because his hands were stained with blood. This fits perfectly in a gangster film.
"Kobayashi": A very common Japanese surname. In a story involving international crime, a Japanese lawyer or intermediary is a completely normal setup.

But "Barbershop Quartet"?

What pops into your head when you hear that name? Is it four guys in striped vests and straw hats, singing old-fashioned harmonies while giving customers a shave? The image is full of sunshine, peacefulness, and a touch of the ridiculous.

This feels like it belongs in a completely different universe from the world depicted in the film – a world of betrayal, shootouts, drug deals, and the elusive, legendary demon, Keyser Söze.

What Makes It Interesting?

The name's fascination lies precisely in its incongruity.

Ultimate Contrast Cuteness (or Charm): When Verbal Kint weaves this name into his grand, dark crime story with his flat yet mysterious tone, it creates a strange chemical reaction. Such a "harmless" name used within a narrative full of violence and intrigue – this contrast itself is rich with dark humor.
The Ultimate Mockery of the Audience: At the film's end, when Detective Kujan stares at the cluttered bulletin board, his gaze finally landing on the "Skokie Barbershop Quartet" sticky note, I believe every viewer experienced the same "click" in their head as he did. This most improbable, most absurd name was precisely the most powerful piece of evidence shattering the entire lie. It felt like a huge joke left by Keyser Söze (aka Verbal) for the detective and the audience, as if saying: "See? I fooled you all with something this ridiculous."
Perfect Embodiment of the Narrative Technique: This name perfectly embodies the film's core trick – the greatest lies are often hidden in the most mundane, unremarkable details. Keyser Söze is legendary not just for his brutality, but for his ability to take the most ordinary things and weave them into a seamless, colossal lie, before "limping away" into the crowd.

So, while "Redfoot" and "Kobayashi" are crucial parts of constructing the lie, "Barbershop Quartet" is the most brilliant "stroke of genius" that truly showcases Verbal Kint's (or rather, Keyser Söze's) contemptuous intelligence and cunning.