The noble warning sign, was originally just a sign, merely indicating "I'm conducting business here, trespassers beware."
Generally speaking, this is meant to scare away civilians and minimize trouble. Other nobles might see it and even come over to watch the excitement.
However, new uses later developed. Nobles would place a warning sign on their own territory, clearly indicating a refusal of any investigation.
If anyone ignored this warning, then sorry, anyone who comes will be dealt with; killing them is just killing them—an extension of feudal law.
Qu Jianlei had already learned the Gustine family's warning signs before this and had gotten authorization.
But he never used them, because this thing itself is a double-edged sword.
The stronger the thing, the more obvious the drawbacks. If warning signs were truly so useful, would the Gustine family need to move away from Qingyuan?
