Anna's father pours Coca-Cola into a EUR3000 bottle of red wine. In Spain this is an actual drink called a Kalimotxo (or Kalimocho), and it's quite popular. Although it might be a shame to add anything at all to a 1996 Château Petrus, any cheap but dry Spanish red goes very well 50/50 with Coke. Garnish with a lemon wedge if you're feeling extra "basic."