What if a QR code could solve the most annoying part of dining out: waiting for the check? In this episode of Forbes' C-Suite Unscripted, host Maggie McGrath sits with Christine de Wendel, co-founder and CEO of sunday. Launched just five years ago, sunday has disrupted the POS system and revolutionized the restaurant checkout experience, processing over $5 billion in transactions by allowing guests to pay their bills in seconds from their phones, and enabling restaurants to turn tables faster