The second son of actor Lee Sang-in surprised everyone by attacking his older brother.

The second part of 'Actor Lee Sang-in and the mother pushed to the edge by raising three siblings' was aired on Channel A's 'Recently Parenting - My Precious Child' on the 21st.

On this day in the studio, a behavioral analysis of the second son was conducted along with the story of actor Lee Sang-in's first son, who received an autism spectrum diagnosis during a meeting with Dr. Oh Eun-young last week.

The three siblings were playing in the yard on bicycles. While the mother thought they were playing nicely, the second son's behavior caught attention. The second son followed his older brother closely, repeatedly displaying aggressive behavior towards him, and when he discovered his brother stuck in a pile of dirt with his chain off, he exhibited behavior such as running into him with his bicycle.

The second son, who intentionally attacked the first, eventually ran at full speed and intentionally collided with him. When the first son ran away, he chased after him to continue the attack, which surprised everyone. Ultimately, the first son fled into the house, and the second son stared fiercely at him.

"Have you seen this before?" Lee Sang-in said, "I haven't really seen it. The second son rarely shows aggression first. It's beyond aggression; it's a level of torment," and Dr. Oh Eun-young opened with, "Human nature is refined through education, and one of those aspects is reflected in how we treat the weak."

He continued, "If it's not learned at a very young age, it's easy to attack the weak. To the second son, his brother is the weak one. As the differences increase, the fact that his brother is less capable becomes visible. If he doesn't learn well, he could seem more vulnerable. This situation is considered a very passive form of behavior. It's passive aggression. It seems like he can't openly bully, so he attacks under the guise of an accident."

[Photo] Capture from the broadcast of 'Recently Parenting - My Precious Child.'

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