Have you ever stolen a network cable before?

There are advertisements everywhere: optical fiber has no copper, so it is useless to steal and cut it.

Unlike cables, the inner core of optical cables is made of glass. It's really useless to cut it off, but the thief doesn't know From the appearance, they think it's a cable, and they think your slogan is just to scare them and try to break their financial path. They don't realize the harm their actions have done to society, and they don't believe that this slogan is a kind persuasion. I guess I'll have to repent in prison.