is for Petronus
This really is the question of a lifetime: What is your petronus?
Well, there is a simple way to find out. Warner Bros has an official petronus app that you can access here.
It's a Facebook app, so you might need a Facebook account to make it work. But it's the easiest (and fastest) way to determine your petronus.
Hint: if you follow the link and click allow and it doesn't work. Close the window and try the link again. That worked for me the first time.
Hint #2: You have to really think hard about the questions to make it work. (As I recall, there are only two.)
Did you take the quiz? What is your petronus? Even if you don't take the quiz, tell me what you'd want or expect your petronus to be.
Bonus: Expecto Petronum
May the Force Be You?