The holidays present numerous opportunities for pets to ingest toxic substances and foreign objects or otherwise get hurt. According to pet health insurance companies, claims increase around Christmas, Halloween and Easter, with claims linked to ingestion of chocolate, candy or raisins by dogs far more likely Dec. 21-31 than the rest of the year, according to Petplan Pet Insurance. Dogs are of particular concern. "Dogs will eat almost anything," said veterinarian Jules Benson, Petplan's vice president of veterinary service. "Cats tend to be much more discriminating."