On October 12, 2014, a group of pictures taken by netizens on bus No. 93 in Chongqing became viral online. An old man fell asleep on his seat with his body leaning outward. While noticing that, a youngster walked toward him and kept standing beside him acting as a 'body cushion' for 20 minutes until the senior citizen got off the bus. The young man named Zhao Meng is a sophomore in Southwest Jiaotong University. "Actually, at that time, I didn't think too much. I was just afraid that the old man would fall off his seat," Zhao said.