I've heard that if you want to learn about the nature of man, observe them while they wait in a line.
I've also heard that you can accumulate the knowledge of a four year degree in philosophy, just by riding a city bus and staring out the window for a yeat.
I think we need to add Wal Mart parking lots to this pool of free knowledge. haha
Annnd...If you want an advanced degree, visit Walmart's in different communtiees. The clientele differences between the Walmart's from Bloomington to Bedford to Paoli to Jackson, TN is not so subtle.