It would be blasphemous. Apocalyptic, even. However, after being up so late last night helping Galinda mend her Ozian linguistics paper and then getting up only a few hours later to retrieve Nessa at the train station after her visit home, Elphaba was ready to collapse, in class or no. Apocalyptic, she reminded herself firmly. Don't even consider it.
Galinda (seemly forgetting that Elphaba's weariness was largely her fault) had clucked worriedly at her, telling her that with her grades, she had perfect lisence to skip class every now and again. Elphaba, though, had staunchly refused to even consider this suggestion, that she could not possibly miss class, it went completely against her principles and she'd never live it down. Galinda had rolled her eyes and muttered something about "just want to retain the privilege of being allowed to roll your eyes and scoff if somebody else skips." The green girl had grinned evilly at this, and proceeded to ignore her weariness for long enough to congratulate her roommate on the use of so sophisticated a word as 'retain'.
Elphaba sighed, brought herself reluctantly back to the present, and jotted down a few of the professor's words, more as a means of staying awake than anything else. Galinda was probably right about the eyerolling rights, she mused-- after all, she constantly complained about the uselessness of this professor. She didn't learn anything from him, anyway, and at the moment, she'd like nothing more than to just lay her head down on her desk, close her eyes, and doze off.
When class finally ended an eternity later (forty-two minutes of eternity, to be precise), Elphaba somehow managed to drag herself back to her room before throwing herself down on her bed and falling immediately into a deep, exhausted sleep.
Galinda arrived only a few moments later, only to find her green roommate sprawled across her bed, without even a blanket or quilt to cover her and still wearing her coat. Galinda shook her head with a smile, briefly considered pulling a very rude prank on the sleeping green bean, and decided against it as she gently peeled Elphaba's coat off and covering her with her quilt. "You and your eyerolling rights, Miss Elphaba," she whispered softly. "What am I going to do with you?"