“It didn’t take long for former crypto-billionaire Sam Bankman-Fried to learn the economic system of New York’s Metropolitan Detention Center.

On Thursday, the Wall Street Journal reported that SBF paid for a haircut with packaged mackerel, a type of pelagic fish that is a choice of currency among inmates.

The fish, popularly referred to as “macks” among inmates, has been the choice of currency in federal prisons since 2004, after cigarettes were banned, the Wall Street Journal previously reported”.

Look at Sammy Big Macks over here.