https://www.bbc.com/news/technology-46150107"A Chinese headmaster has been fired after a secret stack of crypto-currency mining machines was found connected to his school's electricity supply.
Teachers at the school in Hunan became suspicious of a whirring noise that continued day and night, local media report.
This led to the discovery of the machines, which were mining the crypto-currency Ethereum.
They racked up an electricity bill of 14,700 yuan (£1,600).
The excessive electricity consumption had previously been reported to the headmaster, Lei Hua, but he reportedly dismissed it as being caused by air conditioners and heating devices.
A local authority responsible for "discipline inspection" has claimed the money that was made through the mining activities."
I think "discipline inspector" is a budding line of work.