Dobby, The Kinky House Elf
Old wizarding families often have one creature that is common in every household – the house elves, or simply elves. They are magical beings which were immensely devoted and loyal to the one designated as their master. They are bound to do everything that their masters commanded unless they were freed. A house-elf could only be freed when their master presented them with clothes.
In this comic strip by Madame Lady, Hermione pointed out to Professor Dumbledore that they should free the house elf. At first, Albus believed they loved working for free, but everything takes an odd turn. Dobby the elf then insisted that he must be spanked for failing to clean one spot. Now that is one naughty elf.