Change into Hermione

Deciding that Hermione would be the best choice to tempt your uncle into cheating, you sprint upstairs and dig through your trunk, pulling out a vial of polyjuice potion and Hermione's hairbrush you stole weeks ago. Putting a strand into the potion, you wait until it turns a warm chocolate colour and debate whether to take it now or wait till later on and come up with a plan better than simply waiting nude in his bed.