Incomprehensible Sludge
This was the last straw for Severus. He glanced over to where Dazai Osamu sat, seemingly dropping random items in his 'potion', if one could even call it that, at completely scattered intervals. A foul stench rose from the goop that sat inside the pewter cauldron, and he could see the bubbles from his desk, rising to the top of the vivid orange sludge and popping, sending the fizzing ooze all over Dazai's work station. His brow furrowed.
He heard the boy's listed voice chime out, ignoring the despair of Blaise, his partner. "This looks like a potent acid. I wonder if I'd die from drinking it?" The boy seemed to be weighing the pros and cons of this decision. Snape walked over to his snake, a look of exasperation upon his face.
"I don't believe you can clean that safely, Mr Dazai." He remarked. Snape flicked his wand, causing the cauldron to levitate over to the cleaning station, and dump itself out.
*Why won't this problem child do any assignments?* He thought.