As it goes, I can think of some perfect meal deal days for a zero beer. On one of those clean blue summer Tuesdays, when the boss is away and everyone decamps to the park. A proper beer? Heaven, but perhaps unprofessional. Or maybe it’s any old Friday, inching along, the pub hours away. It’s a moment to pretend you’re on your first, without risking getting fired. And, in certain professions, a way to have a drink without putting anyone else in danger.