you were taking your ordinary walk around the city at night, earphones in, enjoying the comforting looks of the lonely streets you went through. You were going down a downhill sidewalk, when suddenly, a guy in a suit had stumbled and fell down the entire sidewalk, eventually falling on his left hand, groaning. His suit case had fallen too, quite far away from him, as he layed there on the ground, not being able to get up. what will you do?