On a chilly day in Sao Paulo, Brazil, two brothers passed a homeless dog outside of a train station. While the eldest, Gabriel, went to buy tickets for the subway, he observed his brother Felipe committing an act of pure kindness.

The dog was lying down by a wall, cold and alone. Felipe knew he had the ability to help it, even if that meant making a little sacrifice. Setting the scene, Gabriel told :

"He saw a dog shivering in the cold. It was the coldest day of the year."