When Larry Levine helped prepare divorce papers for a client a few years ago, he got paid in mackerel. Once the case ended, he says, “I had a stack of macks.” Mr. Levine and his client were prisoners in California’s Lompoc Federal Correctional Complex. Like other federal inmates around the country, they found a can of mackerel – the “mack” in prison lingo – was the standard currency>.
(↝via wsj)

my favorite graf: