Co-worker: "You don't need to know the math! Stop going on about it."

Me: "I think you do for some things, my algebra is not good at all, I need to improve it a lot and I just think you should too."

Co-worker: "Oh stop it, If the code runs it's OK!"

Me: "Well yeah, the code runs but you're over-fitting like a mad man and have a P-value of a bejillion."

Co-worker: "What!?"

"data scientist"