C23 True madness and pseudo-insanity?

Xu Lu's feet shook as he opened his arms. His entire body was halfway out of the railing, like a kite about to fly out.

He stood to one side, the corners of his mouth curled up in triumph.

Hu hu!

The sound of a police car came closer and closer.

The three men ran to the edge of the rooftop and looked around. They said in panic, "Sister Qin, the police are here