Though they might not show up until Monday for you.
If you got an F, don't fret! This is readily resolvable. It means that I am missing a test for you, for whatever cause, and did not want to give you a low grade without getting your attention. Otherwise, you might have gotten a B and not thought to ask me about it, when you should have gotten an A+, for example. Please contact me ASAP -- I'll try contacting you as well -- and we can resolve this quickly.