Whenever you encounter sub-tropical animals in the wild with large teeth, tusks, claws or venomous fangs, you certainly DO need to worry, and it can indeed become really really problematical. Insects and plants can always be dangerous as well. Fire ants can sting you to death. Mosquitoes can give you malaria or encephalitis. Big toads can exude poison. Cotton mouths, rattlers and coral snakes can bite you. Armadillos can give you leprosy. Black snakes an leap out of trees at you. Pythons can strangle you. Itch-weed can kill you. Oleanders can kill you. Boars and bulls can gore you. Sand spurs can stick into your feet. Bears and Gators and sharks can eat you. Sting rays and sea urchins can spear you. Portuguese men of war can sting you. Florida can be a dark and scary place. Ohio is much safer.