A teacher allegedly brought cocaine into her classroom and got so high that she thought one of her students was a dog. Melissa Martin, 47, was working as a substitute teacher at a primary school when she was charged with cocaine possession and reckless endangerment, when she was supposedly caught with the drugs while on the job. Martin was working at the Barre Town Middle and Elementary School in Vermont when the incident took place. Police rushed to the primary school on the morning of October