Can I have an extension?

-or incomplete, or whatever is required now completed later?

Yes, instructors should be flexible and usually are, but what we are talking about here is the pervasive attitude that the reason that an accomodation should be made is because the student wants it. I once had someone ask me to move back an assignment because they were having a party that weekend (my response was that they had my permission to study early). The child-centric society attempts to become the student-centric university.