Have you ever heard of a pay-what-you-can restaurant? How about an unmanned pay-for-what-you-take drink stand?

Panera Bread, inspired by a cafe in Denver, decided to open Panera Cares, a restaurant with the full Panera menu where a donation box is set up in lieu of a cash register.

For a slightly different angle, Honest Tea set up unmanned stands selling tea for $1 a bottle. No one was there to enforce this however... it was all on the honor system. The result? 94% of all customers paid!

In conclusion? "Trust people; they'll often surprise you."