The eternal screaming void of nested conditionals. Every developer has stared into the abyss of a codebase with so many else if statements that you need archaeological tools to find where it all began. That moment when you inherit legacy code with 17 levels of if-else chains and zero comments. The horrified faces perfectly capture the existential dread of realizing you'll need to refactor this monstrosity before you can add your "simple feature." Pro tip: If your conditional logic needs its own zip code, maybe it's time for a switch statement or a strategy pattern. Your future self will thank you instead of screaming into the void.