While taking the subway this afternoon, a four or five-year-old boy was crying and fussing to play with my phone.

I didn't know him, so I ignored him. Unexpectedly, the boy's mother not only didn't stop him but also glared at me.
As the boy's crying grew louder, an auntie came over and said to me, "What's wrong with letting the kid play with someone else's phone? He won't break it."
She then handed her own phone to the boy. The boy took it, looked at it, and directly threw it on the ground, shouting, "I don't like this."
At that moment, my mood, honestly, was so grateful...
If any one part had been missing, I wouldn't be this happy today.