Would you rather be bitten by a venomous rattlesnake or touch a poisonous dart frog?
The difference between poison and venom is purely in its method of delivery. Poison has to be inhaled, ingested or absorbed. Venom has to be injected into a wound. Chemically, venoms and poisons are both considered toxins, so a snake bite is venomous, a poison dart frog is poisonous.