@Builder,
Something very similar happened to me when taking classes at evenings in a public sponsored school.
One day, the teacher came with boxes of chocolates and told us to sell the candy to obtain funds for the school.
Most of us were young guys and gals with no intentions of asking family or friends to buy chocolates.
From my part, I decided to pull some money from my pocket and buy by myself $80.00 of those chocolates. I invented names and addresses and returned the few candies left with the money. I gave the candies away later on.
The same night, my name was mentioned by the principal throughout the school speakers. I was the student who sold the most candies, and my reward was $200.00 cash.
Party!
I bought pizza for the entire class, and we had a delicious dinner in the classroom that night.