I walked into a bar and said, 'I'll have a drink that tastes like the moment you're at the grocery store, you've got a cart full of food, you get to the self-checkout, and the machine says Unexpected item in bagging area. For a single apple. Just one apple. And you're standing there, holding the apple, looking at the screen, and a stranger behind you is sighing. Not an angry sigh. A tired sigh. The sigh of someone who has been through this before.'