Who is doing that cackling?

Andrew Eberhardt, sitting in school bored, decided to make “cackling noises” in his classroom of which his fellow classmates found incredibly funny, but Andrew’s teacher, Mr. Jacque Verbwhede, did not find amusing. Mr. V was completely dumbfounded over where the “cackling noises” were originating. When interviewed, Mr. V stated that he looked up from his desk and asked “where the cackling noises were coming from,” but to no avail. No one would “fess up” to the indiscretion. This created a difficult learning environment for Mr. V, but created extreme humor for the students. At conference time, Mr. V relayed the information to Andrew Eberhardt’s parents and Andrew was disciplined accordingly. His parents actually thought it was humerus.