Below you will find the text of an email I received from a real student several semesters ago. Thankfully, this kind of communication from a student is a rare occurence. Sadly, it is not an isolated one.
Please be aware that in this course, as in others, it is always your job to check that you have completed an assignment and all of it's required components before you submit it.
It is my job to do so (ie, grade it) after you submit it.