The Final room in the Chamber of secrets required a secret (sacrificed freely) to open. "I like Hermione" Ron muttered. "I like her too" Harry said looking at his shoes. Both of them looked at Hermione. After a long awkward pause she finally said -
"I think the chudley cannons suck". The door opened.
Both Harry and Ron were flummoxed.
"It didn't say to sacrifice a big secret dummies." Hermione replied pink faced and entered the room looking rather pleased with herself.