No Pants Subway Ride

People stand in a subway station during the worldwide 'No Pants Subway Ride' event in Mexico City on February 21, 2016. Organized by New York City-based prank collective Improv Everywhere, the annual event was launched in 2002 and has since spread to more than 60 cities. (ALFREDO ESTRELLA/AFP/Getty Images)

People stand in a subway station during the worldwide ‘No Pants Subway Ride’ event in Mexico City on February 21, 2016. Organized by New York City-based prank collective Improv Everywhere, the annual event was launched in 2002 and has since spread to more than 60 cities. (ALFREDO ESTRELLA/AFP/Getty Images)