In Lahore city of pakistan where student's were addicted, professor was discussing the evils of drugs. Off he went into his inventory of horrors: "Used regularly, drugs can cause psychic disorientation, sterility, cancer and castration!" "Now wait a minute, Professor," interrupted a student. "Castration? That's absurd!" "No young man, it's sadly true," replied the Teacher smugly. "Just suppose your girlfriend gets the drugged.