It wasn't really that Gwenna hated Herbology. As far as classes went, time spent in the greenhouses was usually relatively tolerable since it involved things like digging around in dirt, wrestling with Venomous Tentacula, and collecting foul-smelling stinksap from Mimbulus mimbletonia. But the third year student was feeling particularly grouchy after she'd gotten detention for threatening to pull off another student's earmuffs when they'd been attempting to repot some Mandrake seedlings. Even after she'd protested that she'd only meant it a little, Professor Prewett had been unrelenting and assigned her to two weeks' worth of shifts assisting in the greenhouse as punishment.
She was in the process of clomping back to the castle, dragging her feet to leave muddy footprints on the path behind her, when an unexpected movement near the rose gardens caught her eye. Gwenna paused, squinting cautiously towards the flower patch.
She recognized the older student, Charlie Sinclair, from some of the joint year Care of Magical Creatures classes. Sinclair wasn't bad -- she was one of the friendlier older students, by and by, and not nearly as obnoxious as some of the know-it-all girls in Ravenclaw -- but seeing her standing there, her back to the path and fully engrossed in what she was doing, was far too tempting to let slip by.
Sucking in a breath, Gwenna found her footing, and then quietly crept closer...and closer...
"GRARRRGHLERAAAR!!"
Letting out a horrible roar reminiscent of the Mandrakes that had gotten her in such trouble, she leapt at the Hufflepuff girl from behind as if to attack.