According to my grandmother told me back in the era of the tents, Mario Moreno acted with "Sketches " next to Medel. It was during one of them which emerged a drunkard from the public to see the facade he shouted: " in what cantina inflas? " but by his inebriated State only managed to say: " do in what canti ' nflas? " and from there Mario Moreno decided to adopt the pseudonym.