Maybe my least favorite trope: completely ignoring all the rules you're told will keep you safe without ever learning or showing that it's beyond the character's will and then being shocked and full of regret when the bad things happen.
"The Phantom of the Opera" brings a song to my lips of a musical I've never seen. Let's talk about a classic and how pop culture can distort what the source material original was.
Decided to kill some time at an underground bookstore, ended up going home with books and postcards and fangirling over some printing presses and type.