Yeah most of your response is true, however maybe you should acquiant yourself with Wal-Mart's terminology before you spout off about somebody's intelligence (or lack thereof).
A D-Day is a common term for "Decision-making Day," wherein, an employee has had 3 write-ups, and receives a paid day off to "make the decision if they would like to stay at Wal-Mart or not" and then write a paragraph explaining why they want to keep their job. This D-Day remains in effect for 1 year, and any slip-ups in that time and you will be automatically terminated. It's a common term thrown around Wal-Mart. though I'm sure instead of an apology for speaking about things you don't know, you will simply comment on my lack of intelligence for working at Wal-Mart also, I suppose I should finish the fifth grade before speaking to someone like you, of such high standing and integrity? Hmm..