 Working from memory, Stu is expected to use an array of thousands of identical unlabeled toggle switches for this purpose; Mr. B's neutral expression gives no hints of which ones to use.Stu's hesitant flicks of the switches turn out to be wrong, he also gets mad, causing Ernie to bump into the walls and ceiling, albeit without waking him up.As Stu grows increasingly frustrated, Stu yells and swipes randomly at the array.