This man´s work is to sweep the plaza. He arrived when we went about half-through with out Trianguliche game. We were worried he would get mad at us for messing up the floor with chalk but he was perfectly cool about it ("if they ask me, I didn´t see nothing, I like the fun myself"), listened to our explanations of how the game was, sat down and watched till the end and said "well, I need to get going now, but congratulations and good luck with your event".