Deadly to dogs

An Irish setter was allegedly poisoned at Crufts, using beef containing slug pellets. Some other substances with which dog-show rivals could poison your pooch:
— Chocolate contains theobromine, a stimulant which dogs cannot metabolise, and which causes the heart to race. It takes just 1 oz per pound of body weight of milk chocolate and a third of an ounce per pound of body weight of dark chocolate to kill a dog.