Lexi was not sure she agreed with the Professor on everything, but then again she had found in her years at Hogwarts that she seldom saw eye to eye with ANY professor at the school. Heh.

Raising her hand she said, "Dark creatures are creatures that's sole purpose is to inflict harm. They are not necessarily animals, either. The Dementors are considered Dark creatures, but they are not animals in the traditional sense." She could argue that some of her classmates were Dark Creatures perhaps... at least one disgusting girl was as slimy as they come and evil to boot. Heh.