Hall started buying shares a few at a time .
His ability to translate complex financial concepts into simple English through the use of slices of cake led to him becoming director of course development at Leo Fleur , a company selling training materials for Wall Street examinations .
Hall started buying shares a few at a time and his ability to translate complex financial concepts into simple English through the use of slices of cake led to him becoming director of course development at Leo Fleur , a company selling training materials for Wall Street examinations .