Late at night, a burst of singing came from outside the corridor. I thought some kid was playing a song outside. Just as I was about to go out and have a look, a message suddenly appeared in the group. Let's play a game. Throw a handkerchief. Whoever the handkerchief falls on the doorstep will win. During the May Day holiday, my friends went on trips and dates, and I was the only one lying at home watching TV shows. At night, when I was getting ready to go to bed, a burst of singing suddenly came from outside. Some people in the group expressed their dissatisfaction. Whose child stayed up most of the night and hummed something outside? Shocking! I mean, if you can just control it and sing in your own home, then why are you running out?