This is a great concept and my son Devin actually did this for total strangers last spring at a fast food enterprise. It makes me proud to be his father but more importantly to consider how I can contribute to others. Imagine how you can pay it forward for someone else.
A Gift Economy at Karma Kitchen | KarmaTube.
[vimeo http://www.vimeo.com/29671761 w=640&h=360]
Video from KarmaTube