The ultimate physics professor flattery! Someone asks about a "Langarian" (which doesn't exist), and the professor gets so excited about teaching that they don't even notice the mistake and launches into explaining what a "Lagrangian" actually is! 😂
It's like accidentally calling your barista "mom" and they're so happy to see you they don't even notice. In physics world, nothing gets a theoretical physicist more excited than someone asking about the mathematical framework that basically describes how EVERYTHING moves!