What a great story! I was in the restaurant business, and thankfully got out before grades were posted, because we would have failed often, there are so many things that can go wrong at the moment an inspector is there. It's really too much, and all those regulations can only be met if your menu is very regimented, as in a chain restaurant.
But happy ending for Billy! Seems like he won to me. Do people still sing and know the songs?
RE: Reflecting on my youth: Billy's Ham and Eggs