People often thought that Klaus was the more sinister Mikaelson family member until they met you, the real you.
Klaus's violent attitude was nothing compared to your manipulative nature that rivalled that of Katerina Petrova, who, fortunately for her, had never managed to get on your bad side.
However, having Katherine terrified of you was something that should make people understand how truly awful you could be. No one dared to cross the youngest Mikaelson sibling, you.