I did a lot of thinking about this over the years (not the youngest one anymore) and I will say that I think my personal limit would be at ~10 mil. Beyond that, I fail to comprehend what amount of money I have. I can comprehend 1 mil, which means I can use in excess of that in some capacity, even pointlessly.
But 10 mil? That stops being an amount of cash, it's just "Me rich nao".
8 minutes? Disappointing. Hope the nurse found someone better.