Speaking from personal experience as one who has spent a fair number of hours in bars, there is a universal protocol for dealing with misplaced or forgotten personal items left behind by fellow patrons. Wallets, keys, phones, purses. Whatever. If you see something like that on the floor, or forgotten on a table, you pick it up and hand it to the bartender. If you realize you’ve lost something, you ask the bartender. Everyone knows this.
Daring Fireball: Gizmodo and the Prototype iPhone
