Flush Out of Explanations.

I know why scientists are excited about Large Hadron Collider. I know why it's so hard for Congress to get things done. I know why many college students are dissatisfied with the world of higher education. I know why so many houses are in foreclosure. I know why a lot of people trust neither big corporations nor their highly-paid CEOs. I know why so many of us are fed up with healthcare and insurance companies. I even know why peace in the Middle East is so difficult to attain. But for the life of me I can't figure out why the cleaning crew at Union Station in New Haven decides to close the restroom at the height of the morning rush.