I did a Top Grading interview once. I basically wound up throwing the interview 45 minutes in; I realized I didn't want to work at a place that was going to be

I did a Top Grading interview once. I basically wound up throwing the interview 45 minutes in; I realized I didn't want to work at a place that was going to be so strict/formal for any position in their company. Yes, I'd do 100 whiteboard interviews before I do another one of those.