‘’ Transfiguration is some of the most complex and dangerous magic you will learn at Hogwarts. Anyone messing around in my class will leave and not come back. you have been warned.’’

Due to the applied, precise nature of transfiguration magic, there was a large potential for it to go disastrously wrong, even for the experts. This was Especially true if the practitioner wasn’t taking things seriously and/or punching above their weight ( with respect to the magic they were attempting to perform). If it was done improperly , the transfigured object could become half- transfigured or permanently stuck in one state ( whether fully or partially transfigured). For example , Viktor Krum once half-transfigured himself into a shark in the second task of the Triwizard Tournament in 1994, although he wasn’t stuck in that form so it may have been intentional in his case.