I finished my dog-like day shift and walked home. A child suddenly cried on the bus. He got on the bus by himself, but his mother didn't come up. The sleepy and cold carriage suddenly became lively, and everyone quickly told the driver what had happened. The aunt here comforted the crying child, and the uncle there helped to ask if he remembered which bus stop ... After the child stopped crying, he said that he remembered his parents' phone number, and then the driver immediately pulled over to contact the child's parents ... The traffic police thought there was a temporary problem with the car and asked ... Finally, the traffic police took the child and waited for his parents to come over.