She might have laughed at Hermione's convoluted sentence if this whole situation weren't so messed up. At it was, she just gave Percy a grateful smile for the clarification.
"Pretty much. And I ran into the other student, who was unconscious and bloody. When I tried to help him, he flipped out and kept yelling at me to get away from him so he wouldn't hurt me." The memory was still fresh and gave her a shiver. Goldstein was out of his gourd.