Surely missing a "day off school" means you are not missing any school at all?
If I had a day off school then I had (or took) a day off school, I didn't miss a day off school, or that would mean I never had that day off and therefore by default must have attended.
Unless of course what you actually meant was "Does missing a few days of school hurt?" in which case the answer is (in your case) evidently "Yes it does"
You, Sir, deserve a slap for spotting that mistake
