I'm doing engineering in the instance.

What? A 12% survival rate? That translates to: out of 100 people who go in, 88 won't come out. After reading it, Xie Chengzhou first sent a message to the client demanding rectification, then to the subcontractor urging payment, and finally to his mother nagging him about marriage. Then he opened his memo and wrote: "Insufficient sample size, data to be verified." In twelve years of construction work, what hadn't he seen? This is what you call a bad construction site?