And You Thought Cruciatus Was Bad

There were many forms of torture, but this, Draco decided, was the absolute worst.
“Must you do this to me, Potter?” he called, to no avail. He pinched the bridge of his nose to keep his headache at bay. It didn’t help. “POTTER!”
This time, Harry heard. He appeared in the doorway.
“You called me?”
“Yes.” Draco rolled his eyes. “Turn the volume down.”
“But she’s magical!” Harry protested and started humming along to A Cauldron Full of Hot, Strong Love.
“In the way the Dark Lord was magical,” Draco muttered, but then reconsidered: Celestina Warbeck was worse than Voldemort.