- "CLOSING PROCEDURE:
1 - Lock all doors.
2 - Flip the "Open" signs to "Closed".
3 - Assist any remaining customers and escort them out the door.
4 - Double check the lock on The Monster Book of Monsters! (you know what happened last time.)
5 - Extinguish all lights.
6 - Exit the store.
7 - Cast a Security Spell."
- —Dervish and Banges closing procedure[src]
A Security Spell (incantation unknown) was a charm used to prevent a break-in at a specified location (a closed shop, for instance). It was part of the closing procedure at Dervish and Banges to cast a Security Spell around the shop premises.
- The Wizarding World of Harry Potter (Mentioned only)