Dru rolled her eyes at this girl's clumsiness and watched her attempt to deal with the problem of the spilt ink. "Don't just sit there and say 'uh-oh', do something about it before you're chucked out." She told the Ravenclaw before taking it upon herself to look at the girl's homework.

"Wartcap powder is a substance which reacts with skin, causing it to turn into a thick hard crust," Dru informed the girl. "Not too pleasent if it's unexpected, I can tell you."