CENTERVILLE — The Massachusetts Society for the Prevention of Cruelty to Animals has issued a list of common Thanksgiving meal ingredients that may be harmful or fatal to pets if ingested.According to veterinarians at the MSPCA’s Angell Animal Medical Center in Boston, dangerous foods include: chocolate, which even in small quantities can spike heart rate and anxiety in dogs; yeast dough, which can rise in the stomach and cause severe discomfort and possibly require [...]