While I generally frown on profiling humans, I learned in engineering school that some comparisons between people can be genuinely useful. For instance, what was your favorite building toy as a child? You’ll find that folks who enjoyed Lincoln Logs generally prefer ready-made solutions more than someone who enjoyed Legos or K’nex. Future engineers, I found, were the only class of human to really enjoy erector sets. Now that I’ve learned about mortgage lenders, I wonder if many executives working in our space were also closet erectors.