How to poison a dog?

Dog poison No. 9: Rodenticides, if ingested by dogs, can cause severe problems. The symptoms depend on the nature of the poison, and signs may not start for several days after consumption. In some instances, the dog may have eaten the poisoned rodent, and not been directly exposed to the toxin. Dog poison No. 10: Lawn and garden products. read more

Because of this, dogs will consume great quantities of ethylene glycol before being repulsed by its aftertaste. By then, it is too late. It does not take a significant amount of ethylene glycol to cause fatal damage to the system; less than three ounces (or 88 ml) of antifreeze is sufficient to poison a medium-sized dog. read more