Add the following properties to the list of what “Customers” consists of

Hunger Status:

A value which is either “Full” or “Hungry” and by default is “Hungry”

Favorite:

An Ingredient, which is privately tracked by the Yard rather than being publicly tracked. Can be empty, but if a Customer does not have a favorite, the Yard should privately randomly select a favorite for them at the Yard’s earliest convivence.

In “The Night” replace “The Yard selects a Customer at random from the list of Customers” with “The Yard selects a Customer at random from the list of Hungry Customers”

In “The Night” replace “The Yard selects a random item on that Truck’s Menu to be the Active Customer’s Choice.” with “The Yard selects a random item on that Truck’s Menu to be the Active Customer’s Choice. If any items on that Truck’s Menu contain the Customer’s favorite ingredient, the random selection is made only from only those items. “

In “The Night” replace “Remove the Active Customer from the list of Customers.” with “Set that Customers to be Full”

Add a new step called “Digest: Set all Customers to be Hungry” to the Serve atomic action, right after the “Go home” step.