I was walking and looking at my phone when I bumped into an old man.

The old man fell to the ground shouting "Ouch," saying his leg was broken.
I was terrified and quickly called 120.
When we arrived at the hospital, the doctor said there was no fracture, just a superficial injury.
The old man insisted it hurt and wanted to be hospitalized. I paid 3,000 yuan upfront.
The next day, the old man's son came and said he would give an additional 20,000 yuan to settle privately, or he would call the police.
I said, "Go ahead and call the police."
The police arrived, checked the surveillance footage, and found that the old man was a habitual offender, who had just staged a fake accident with a delivery driver last month.