My Three Least Favorite Harry Potter Cliches

So now that the Potter series is over (book form and film form), let's talk about the 3 most annoying recurring themes.

1. We all knew Harry Potter wasn't going to die in books 1 - 6. J.K. made it clear from the start that there are 7 years of school and there will be 7 books in the end. And yet every book the plot was always basically "uh oh, someone's out to kill Harry. Watch out!" Severus, Voldemort, Sirius Black ... it didn't matter. I wasn't worried. I knew book 5 wasn't going to be Hermione Granger and the Frizzy Hair. I knew book 6 wasn't going to be Ron Weasley and the Lack of Confidence.
2. Ron and Harry always sass Hermione when she says something with confidence. "Harry, get started on the tent." ... followed by Harry going "A tent? Where am I going to be able to find a tent!?" We're in book 7, Harry. Haven't you learned that Hermione has everything figured out at all times? PLUS we're talking about magic here. When Hermione says tent or gum drop or elephant that poops ice cream, I don't think it's a stretch to realize she can manifest anything in the world. And furthemore, Hermione's the only one that's actually good at magic.
3. Expelliarmus. F'ing expelliarmus. It's the only spell Dumbledore's Army knows. The Death Eaters can leave fangy clouds, turn into flying smoke monsters, split their soul into 7 pieces so they are basically invincible and actually kill people with their spells, but they can't fight off expelliarmus - the first f'ing spell you learn at Hogwarts. I thought you guys were pros, Death Eaters. Hold onto your wands, you f'ing rookies ... and you might have actually won this thing.