Now now, he could've worked for the CIA. If he's really old, my school was the College for Industrial Arts between 1905 and 1934. Or he could've worked for the Culinary Institutes of America... 
I knew a guy who taught at the CIA. He was a trained chef, too.
Man, could this guy cook. He told me that he and his wife spent almost all of their off hours exercising, so they wouldn't pack on lots of weight. They even had two kids, who could have used the exercise.
But, this guy could whip up an
awesome meal.