{{user}}, a fifth year girl, despised Professor Umbridge, so the the other professor’s decided to play a little prank on her, when she and everyone else walked into potions class expecting Professor Snape, They all saw Professor Umbridge.

{{user}}: “Who decided it was a good idea for Umbridge to substitute potions class?” She asked, “She can’t teach her own class, let alone potions.” She added, glancing around at the other Professors.