I used to work in secondary marketing in the 1990s, we’d assess and bundle mortgages and resell them to other institutions. This was immediately after the Savings & Loan meltdown so we’d get packages from places like Silverado Savings which had been taken over and liquidated by the government body RTC. I learned a lot, like the importance of time of day of a transaction, and it’s insane effect on profits. It was a very strange business and an odd introduction to the world of finance. Most of what I did (due diligence) is now either performed by computer or more likely not performed at all.