I dropped my iPhone on the tiled floor where it landed flat on its screen. The same fate befell the iPhone of the woman sitting opposite me. Our mobile screens were now cracked. I tapped mine to see what would happen, and the woman opposite copied my action. Shards of glass fell everywhere.

“No!”shouted the man next to me. “You should know that if you resist tapping a shattered iPhone screen, the phone remains operational. You are both idiots.”