New scientific evidence shows that 40% of all sick days are taken on Mondays and Fridays! That's nearly half of all sick days!

That would seem to be evidence of employees cheating their employers, wouldn't it? If so, it would make sense to clamp down on employee laxness by restricting the number of Mondays or Fridays that an employee could take off.

The trouble is that the other 60% of sick days are taken on Tuesdays, Wednesdays and Thursdays, thus it makes more sense to restrict mid-week sick days.

And the trouble with both of these conclusions is that 40% is 2/5th and 60% is 3/5ths of the whole, exactly what one would expect of a random sample of events spread over five days. Hat tip: Liberal Order.