Flashed at a stop light

It happened when I was riding an ojek. I was wearing my black dress (knee length and its not that sexy) and sitting behind the driver. We stopped by the stop light just right near Barito and it was not crowded that time. Then I saw an old man trying to unzip his pants–then he showed me his penis. I wasn’t shocked that much. I immediately told my driver what was going on, and then when the driver looked at him, the old man was trying to zip up his pants.