* Taking breaks without permission. Miners were not allowed to take breaks without permission from their supervisors, and those who did were often fined.
* Wasting materials. Miners were expected to use materials efficiently, and those who wasted materials were often fined.
* Damaging equipment. Miners were expected to take care of the equipment they used, and those who damaged equipment were often fined.
* Disobeying orders. Miners were expected to obey the orders of their supervisors, and those who disobeyed orders were often fined.
* Talking to other miners while working. Miners were expected to focus on their work, and those who talked to other miners while working were often fined.
* Singing or whistling while working. Miners were expected to be quiet while working, and those who sang or whistled while working were often fined.
* Fighting. Miners were expected to resolve their disputes peacefully, and those who fought were often fined.
* Stealing. Miners were expected to be honest, and those who stole were often fined.
These fines were often deducted from the miners' wages, which could make it difficult for them to support their families. In some cases, miners were even fired for repeated offenses.