Nicholas nick leeson is a former derivatives broker whose fraudulent unauthorized speculative trading caused the collapse of barings bank the united kingdoms oldest investment bank for which he was sent to prison dont wear this one to work unless your ceo has a great sense of humour and you have no dress code t shirt design reads nick leeson is my homeboyour crew neck short sleeved mens t shirts are 100 premium cotton in a soft pre shrunk jersey knit our womens t shirts are light