Official figures back him up. In May alone, almost €5bn (£4.4bn) was pulled out of Greek deposits, as part of what analysts describe as a "silent bank run". This version is also disorderly and jittery, just not as obvious. Customers do not form long queues outside branches, they simply squirrel out as much as they can. Some of that money will have been used to pay debts or supplement incomes, of course, but bankers put the sheer volume of withdrawals down to a general fear about the outlook for Greece, one that runs all the way from the humble rainy-day saver to the really big money.
"Every time the markets move, I get phone calls," says an Athens-based fund manager. "They're from investors asking: 'How can I get my money out of the country?' "
One senior investment banker is more blunt: "People are scared that the government doesn't know what the fuck it's doing." He tells a story about an acquaintance who took out €30,000, wrapped it in a bag and stashed it in his garage. "The bag had previously had some food inside," he says. "So it attracted rats, who ate the notes."