The Rust compiler treats a single unused import like you've committed a war crime. Meanwhile, other languages are over here letting you import entire libraries you never touch without batting an eye. But Rust? Nah, you've got one unused use std::collections::HashMap; sitting there and the compiler acts like you've personally offended its entire family tree. The princess-and-the-pea reference is chef's kiss because even through seventeen layers of perfectly fine code, the Rust compiler will detect that one microscopic unused import and refuse to let you sleep at night. It won't just warn you—it'll make it a compiler error if you've got warnings cranked up to deny mode. Sure, it keeps your codebase clean and prevents bloat, but sometimes you just want to compile without getting a lecture about your life choices.