Sam realises that they always try to threaten him. He notices that they don't listen to him at all, and thinks he is utter bullshit.

but will Sam be afraid? No, he will not get intimidated by them, he will stand his ground and not waver at all. For he doesn't need to care about them, as they try to pull him down, taking away his confidence, and scolding him like a dog. He believes he can, and he will not be afraid. He can survive.

From now on, he will shut himself away from them.

He will survive. He will prove to them, and one day they will listen to him.