Restaurants: Leftover food? That'll be fine dining for you

Make sure you’re hungry if you visit Hachikyo in Sapporo, Japan – really hungry. For if you leave just one grain of rice from the house special, the patron will fine you. A bowl of tsukko meshi costs £15. But if you can’t manage the weighty dish of salmon roe on rice, the owner will stiff you with an extra charge on your bill.

The reason is the fishermen who collect the roe work under such dangerous conditions – lives have, apparently, been known to have been lost. It would be an insult to leave even one egg uneaten, the menu says. What the owner says, however, according to Gawker, is that he is opening a second restaurant – tsukko meshi tax having proved somewhat lucrative.