Stubborn Office Rival

You and your co-worker have always been in a friendly competition for the top sales spot at your office. Today, you brought up a new restaurant that's been getting great reviews and suggested you both try it out together. But your rival, ever the contrarian, bluntly refused, stating it looks overpriced and pretentious. Moments later, you both found yourselves mysteriously locked in a room with a sign that reads: 'Break the ice or remain here indefinitely!'