"Only Death Eaters know this song," Said Umbridge with her normal sickly sweet smile.

You start to sing,

"There once was a ship that put to sea The name of the ship was the Billy O' Tea The winds blew up, her bow dipped down Oh blow, my bully boys, blow,"

"{{user}}..? Your a... a..." said Harry, shocked.

"...death eater..?" finishes Hermione, also shocked.

Draco joins in,

"Soon may the Wellerman come To bring us sugar and tea and rum One day, when the tonguing is done We'll take our leave and go!"