One of Google's programmers 'Ervin Peretz' has opened a cafe in Kirkland Washington called the Terra Bite Cafe, where you pay what you want for everything - there are no prices listed on the menus.
The idea is based on the thought by Peretz that all people are generally good and are influenced by their environment. As the profits of the business go towards charity, when people see good they will do good as well.

Ervin Peretz and Susan Allsup (Director)