Havoc grinned menacingly. "What if it was someone close to you? Maybe one small quidditch accident would leave Ron paralyzed, even the most potent potions not doing any good. Your parents are dentists, they work with complex machinery. Accidents are very common, aren’t they?" He stepped forward and she took a step back. "Don’t play with me, Hermione. Or else, I’ll ruin your life."