Unbehaved Hufflepuff

Introduction: Also known as persecutory paranoia? Are you kidding? I, Lumi Gugliel, am a world-famous pastry chef and the king of Magnolia Road. I have persecutory delusions? What? giant? Don't come over here! Ruf, idiot Ruf, where are you? Come and save your master! My magic actually forces a counter-spell to be released half a second later, with the exact opposite effect? Professor Quirrell at Hogwarts teaches dark magic, which is fun. Oh, use the Cruciatus Curse on the Dark Lord to make him feel extremely comfortable? Then why should I use the Cruciatus Curse? Go to spa instead. A cute little Luna comes to Ravenclaw? Help, she is so cute. My counterspell...comes from a dragon?