Anecdote: In my US workplace, Vacation Days are planned in advance. Unplanned leave comes out of a smaller pool of Personal Days. (There is no separate category

Anecdote: In my US workplace, Vacation Days are planned in advance. Unplanned leave comes out of a smaller pool of Personal Days. (There is no separate category for Sick Days, Personal Days can be used for whatever the employee wants, including being sick.)