An oldie, but goodie:
http://xavierthoughts.blogspot.com/2008/03/encounter-at-wal-mart.html
And the follow-up post:
http://xavierthoughts.blogspot.com/2008/03/more-on-wal-mart-encounter.html
http://xavierthoughts.blogspot.com/2008/03/encounter-at-wal-mart.html
And the follow-up post:
http://xavierthoughts.blogspot.com/2008/03/more-on-wal-mart-encounter.html