Best Excuse Ever!!

I wrote to a student to ask when I might expect an essay that was due last Friday. This was the reply:

Hey Feemus,
The paper was due on Friday? But my day planner says it's due on Wednesday. I always write everything down in my day planner.

-QED

Well, if it's in your day planner, it must be so. I'm sure that the mistake was on the syllabus. You have my sincerest apologies.

Would you mind looking in your day planner to see when the final exam is? I would hate to give it on the wrong day.

Just when you think you've seen it all...