You'll all be glad of cold brew nettle urine tea when the Climate Wars have disrupted global supply chains. You'll sit there with your fellow refugees, keeping warm around a burning bundle of now-useless £50 notes, taking it in turns to swap stories and rumours.
"I've seen things you people wouldn't believe. A mile-wide flotilla of Javan coffee barges torpedoed by a Montenegrin U-boat off the shoulder of Oman."