It all started when Negro discovered the school’s store on campus. Students will go there during their breaks and purchase things.
This included cookies that they would feed to Negro.
But the students weren’t the only ones learning things on the school grounds. Negro discovered what commerce is in that store. He figured out by watching the students that if you give something, you get something in return.The dog put two and two together, and started showing up at the store with a leaf. To buy his own cookies.
If you look closely you'll see his paw on a leaf that he'd just brought.
“He comes for cookies every day,” store attendant Gladys Barreto told The Dodo. “He always pays with a leaf. It is his daily purchase.”They only let him get two cookies a day, to keep him from getting fat. I love everything about this story.