A dog named Negro lives on the territory of the Technological Institute of Monterrey (Mexico).
The dog was adopted by the institute’s staff: Negro roams freely throughout its territory, from time to time receiving food that teachers and students buy for him.
Negro turned out to be a smart dog.
After observing many times what preceded his dinner, he decided that he did not need to disturb people for this.
If the seller wants some leaves in exchange for food, Negro himself will give them to him.
One day, the seller from the local store on the territory of the institute could not believe his eyes.
The dog ran up and stood on his hind legs and placed a leaf plucked from a nearby bush on the counter in front of him.
In color and shape, it really resembled money.
“He just appeared in front of me with a leaf in his mouth, wagging his tail and making it clear that he needed a cookie,” recalls Angela Garcia Bernal.
Surprised by the dog’s behavior, she couldn’t help but “sell” cookies to him.
Now Negro comes for them every day – and always honestly pays for the “purchase”.
And who will say after that that money doesn’t grow on trees?