Ronald Weasley; the man that won't let on

"I don't know why I'm a suspect, really," Ron chuckled nervously to his father as he made himself a cup of hot cocoa. "I was at Diagon Alley with Ginny; you know that."

"I know," Arthur Weasley agreed, "but there must be some reason why they suspect you, Ron. Have you been up to anything illegal?"

"No way!" Ron insisted. "You know me. The only reason why they think it was me was because I wasn't home at the time."

Again, "I know." And, "I believe you." But does he? Ron wondered, before convincing himself that he did.

Later that night, Ron found himself in the basement, brewing more Polyjuice Potion - just the way Hermione had taught him to.

"Does this really could as 'anything illegal?" he wondered aloud to himself. "It's for a good reason, really…"

But who knows how far we might go when we become accustomed to doing such things?