The Mythical Excel Macro That No One Could Stop

The Django app you were describing where you're doing the subscription tracking to asset changes, that sounds like the sort of thing that would be susceptible to much more requests testing. The whole multi-billion dollar business runs on this one Excel sheet. Pixar with Toy Story 2, they lost it except some producer was on maternity leave and had a copy on her computer. I think they actually thought they didn't have it for a number of days.