BERLIN (Reuters) - Teachers in a German school were treated in hospital after gobbling up an anonymously donated chocolate cake, unaware it was laced with hashish, authorities said on Thursday. Some 10 teachers from the school in the northern town of Lueneburg were treated for nausea and dizziness after sharing a cake left at the door to their staff room, a police spokesman said. "They thought it was food poisoning, but the doctors quickly recognized the problem," the spokesman said. "They showed all the classic signs of people under the influence of drugs." The spokesman said the teachers had not...