How ruthless have you seen ruthless people be?

1. Cutting their own foreskin

2. There was a girl who was in a serious state of depression at the time. She couldn't focus on her exams, so to review, she stabbed herself in the dormitory, which scared her roommate so much that they called the police.

On the verge of death, she managed to overcome most of her depression and continued studying, eventually getting into a 211 university.

3. A child wet his pants in the classroom, and the parent blocked the office door with a brick, making the teacher also urinate in the office.