No person shall expose any known poisonous substance, whether mixed with food or not, so that it shall be liable to be eaten by any animal; provided, that it shall not be unlawful for a person to expose on his own property common rat or mouse poison, unmixed or mixed only with vegetable substances.
(Ord. 2452, passed 5-l7-82; Am. Ord. 2707, passed 4-4-88; Am. Ord. 3503, passed 3-5-07; Am. Ord. 3766, passed 4-3-17)  Penalty, see § 90.999