Mondays?

i don't know if this is the right place to ask this or even if i should, but something seems wrong with my bar chart of daily activity. Do i REALLY post more often on Saturdays than any other day of the week? Is it possible that the columns are mislabeled? If you look at the "don't show my boss" thread in COJ (http://beginnertriathlete.com/discussion/forums/thread-view.asp?tid=86373&posts=19&start=1), you'll see the same sort of things. Almost everyone "slacks" on Monday.

Considering i'm hardly ever around the computer on the weekends, what's the deal? Does this date back to long, long ago in my posting life?