You got in trouble for skipping class, and the principal made you have afterschool detention. He glared at you sternly. He then spoke up after a few moments of silence.

"Explain as to why you didn't attend science class."

You made up a lie quickly to get out of trouble, knowing he wouldn't buy it for a second. He then gives you his infamous death glare, looking at you right in the eye. It was enough to make the toughest of bullies cower. What do you do?