Saw it in Wikipedia, there are a LOT of mysteries/plot loopholes about Ginny Weasley.
Specifically
1) She uses a Bat Bogey hex a number of times. Where/when did she learn it?
2) She's an excellent flyer & good enough at quidditch to later be a pro player. Her family was financially strapped. Where'd she get a broom to practice? Where'd she practice that her family didn't know?

Read More