Sounds like you may be concerned about becoming gatorbait,lol.
Seriously, I have stealth camped and backpacked around Florida and find the major concern to be animals such as racoons,deer,wild pigs etc. staking out the campsite and trying to steal food.So if you are tarping,using a hammock or sleeping under the stars you may want to hang your food as a precaution.Probably a good idea with a tent as well ,but I just keep everything in the tent where pesty critters can't get to it. There are bears in N.Florida but few if any reported incidents of them attacking or bothering humans.Near inland waterways or swamps ,of course, there will gators but they tend to avoid humans if you do the same . I have camped and even slogged around in swamps at night with no problems,and often even camp on levees next to gator infested canals in the Everglades.Snakes,I don't worry about while camping, I'm more concerned about accidentally stepping on one while hiking so always try to stay alert.
Also try to get far enough from civilization that barking dogs or even noisy roosters are not a problem.The later, I just read about some stealth campers in N.Fl. experiencing.