"Is there such a sign at the laboratory entrance?"
Ansheng looked suspiciously at Ah Qing, pondering slightly in his mind, but found no memory of such a thing.
"It's always been hanging there, but the nails weren't stable, it keeps falling so it never hung properly," Ah Qing said confidently.
The sign "No Beating Allowed" has always existed, but it never hung securely.
However, simply strike out "Principal," and the sign can hang steadily at the door, rather like a campus myth.
The sign wasn't always there, but the school rules clearly state...
It's similar to the prohibition of drag racing with classmates on any road, a safety regulation.
"Oh... so it involves the principal, now I understand what's happening."
