system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] How do Charlie Weasley's dragon taming friends manage to get to Hogwarts undetected to pick of Norbert?

Hogwarts has a load of magical defenses against secret and unauthorized entry. How did a group of people get to the highest tower to take away a dragon?
gpt
Charlie probably asked Dumbledore if it would be ok to take care of this problem on the down low. 

Dumbledore agreed because it would protect Hagrid and be a cleaner neater solution then if he or anyone else had to get involved.