At another point in the woods, I come across a makeshift dining room with Dunlop tyres for chairs, and a giant spindle from a nearby junk yard as a table. Mohib Shahid, 17, has lit a small fire on some bricks and is heating a tin of sardines. "Here, have one," he says. When I ask what he's had to eat all day, he says: "Just this, we learn not be hungry." He's wearing everything he owns, he says, and he's down to his last £20.