The unwritten rule is only part of the problem;
I had an unwritten rule that if someone took the time to write, I would give the courtesy of an answer.
This unwritten rule resulted in the sharp increase in the trafficking of Chinese laborers during a time when slave-trafficking was also in full swing in the United States.
They sinned against the unwritten rules of the school.
In therory the amount of tips is optional, but in many places of Ameica, there are some unwritten rules on tipping.
There was nothing in the unwritten rulebook of family responsibility that required her to raise some little snotty-nosed great-grandkid.
This soon became an unwritten rule in Britain and Ireland.
There seems to be an unwritten rule in Spain that anyone within a 30-foot radius of a parent shares responsibility for that person's children.
His behavior transgressed the unwritten rules of social conduct.
Energy Magazine's Yan Xiaowei gained access to a number of such plants and revealed the shady interests and unwritten rules at work.
He bore the unwritten rule in mind.
Our flag company has an unwritten rule, that is, the flag that can be left in the warehouse, has a flag guard to die for it.
So how much more difficult it to discern the unwritten rules of another country?
The monthly salary of new employee is 1500 RMB, it's an unwritten rule.
Luckily, I had a mentor who helped me figure out the unwritten rules.
According to an unwritten rule in old families, grandparents were expected to pay for the grandson's wet nurse.
Don't think too hard about unwritten rules like 'oh I went on a date so now I wont contact him for 3-4 days' If it went well contact the person the day after!
They violated the unwritten rules of the meeting.
We are living in a society which is governed by laws, unwritten rules, customs and traditions; there would be chaos without them.
