A/N: The challenge was to write a 100-word drabble about a Hogwarts class without Harry in it.
Disclaimer: Harry Potter, Severus Snape, all members of House Gryffindor, and all their associates are characters belonging to J.K. Rowling. I claim no rights to them, their surroundings, or their situations. Much to my sorrow.
Lost Cause
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"Miss Granger, your Essence of Wombat is overheating..."
Hermione burst into tears, dropped a beaker (which shattered,) and fled.
Snape sighed. This was not going well.
Moments later, Longbottom tipped a stink-scarab into an acid bath. The nauseating vapors persisted for twenty-five minutes. No use shouting--likely the boy wouldn't hear.
The air had scarcely cleared when Weasley's nettledust packet burst, blinding a half-dozen students. Finnegan upset a burner, Thomas's cauldron overflowed, Brown nearly poisoned herself chewing her fingernails--
"Class dismissed."
Severus rubbed his eyes tiredly. He should have just cancelled class, the day after Potter's funeral.