My first year teaching special education was a disaster. When shown a common tool, such as screwdriver, the students were to write down the name of the tool on their quiz paper. One student, proud of his knowledge, insisted on orally giving every answer to the entire class. I then had him (the class was almost all boys) step outside the classroom and close the door, where he showed off his knowledge by mouthing the answers by the glass in the classroom door. And so it went.