- Friday is defined as a day you are working but have the following day off.
- Saturday is defined as a day you are off but have the following day off.
- Sunday is defined as a day you are off but are working the next day.
Given these irrefutable axioms, if you were to add a second Sunday to the week, one after another, the first Sunday would react violently to the second Sunday and be converted into a Saturday.
Double Saturdays, though? Completely possible. And that's why Saturday is considered a Noble Day.