The Phone Stacking Game, also known as “Don’t Be a Dick During Meals” is a convenient and fun way to keep dinner social:
Here’s how it works: At the beginning of the meal, everyone puts their phone face down at the center of the table. As time goes on, you’ll hear various calls, texts, and emails, but you can’t pick up your phone. If you’re the first one to give in to temptation, you’re buying dinner for everyone else. If no one picks up, then everyone pays for themselves.
Kudos to the crew at Lift 2012 for giving this a shot. Since you asked: the tower crashed due to various simultaneous vibration mode calls.