“Bouillabaisse” Peeves overheard Hermione telling Ron about this one foreign dish at the tables that evening.

“Bull an allergy more like it,” Peeves mused as he glanced around the great hall. Who to prove his allergy to that would be the question? Ah . . . that redheaded boy would be the perfect victim. With a swift and subtle movement, the poltergeist glided across the hall and picked up a spoonful of the French fish stew. Flinging a spoonful at the boy was just enough to trigger the poltergeist's allergy.

“Achhoooooooo!!!!!!!”

The snot flew to covering ANYTHING in sight.