William was an impatient junior high student in Karol DeFalco's Connecticut classroom, constantly bringing questions to her while she was in the middle of helping other students.

After she said, "Not now, William, go back to your seat," he would noisily slam back in his desk with a huff.

His actions were on the verge of causing classroom collapse, a problem that has hit Japan, where unruly students ignore or talk back to teachers, walk around and talk loudly.