I can pull off a better Jen-Hsun Huang "It just works!":
Just plug in -1/12 into ANY sequence that can mimic the infinite sum of the natural numbers (Riemann zeta function for s = -1, the sum of the multiplicative inverses of the antennae of the Mandelbrot set, physics models, etc.) and BOOM! It just works! Think on that for a bit (a mathematician worth his/her salt should know that big ass-umptions must be made).
I once had a student from the Fall 2017 semester actual bust out her calculator (graphing calculator too!) to have the calculator perform a calculation of the sum of two singular quantities: 1 + 1. No lie! She was in College Algebra too. I asked her (with a sarcastic tone and laughing) if she really needed to use a calculator for that. She said, "No, I just wanted to make sure."