Sorry, you're a special snowflake. Your rules are different.

Student: OHMYGOD WE HAVE A FINAL TODAY?
Me: Yes.
Student: TODAY!?!?
Me: Yes.
Student: BUT WHY DIDN'T YOU TELL US WE HAD TO TAKE A FINAL?
Me:  I told you on the first day of school you had a final.  I told you when I handed out the midterm that it would be averaged with the final.  I told you each week of the last quarter that we were preparing for the [end of year state assessment] and the final.  The date has been on the board for the last 2 weeks.
Student: BUT WHY DIDN'T YOU TELL ME I HAD TO TAKE IT TOO?!