<p>I agree that remorse and “I’ve learned a valuable lesson” are the way to go.</p>
<p>OP, you need to suss out each individual teacher’s requirements/quirks/preferences/rules, not assume that because one allows something, they all will. I’ve had teachers who mark off points if you don’t use their preferred font and many who couldn’t care less as long as the font is a “typical” size. I’ve had many teachers who won’t allow Wikipedia as a source, a few who do allow it, and one who encouraged it. Don’t use a one-size-fits-all approach.</p>