I remember when I moved to the flow desk and i had to put trades on via the inter dealer market. It was brutal when people on the other side figured you were smart and had no other incentive to trade with you (market makers in their truest capacity).
Destriero's career in a nutshell: ages 16-21 white castle...started on fries but quickly moved up to burger assembly. Went to college for basket weaving. Took out a loan in 2012 to buy a blockbuster store. Shortly after, he Inherited 2 billions and started trading...currently a millionaire options wizard.