I’m always harping on how your analysis is only as good as the data you have, and it appears as though I’ve found a soul mate. In trying to collect the most basic of data (the number of steps he walked each day, using a pedometer), this data nut discovered just how hard it is to collect good, reliable data:
http://flowingdata.com/2007/08/13/my-mission-is-to-collect-basic-data/

I was blown away by the following information from Attrition.org’s Data Loss Archive and Database (featured on Flowingdata.com):