A simple reminder of how hard it is to collect good data

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/