It was a little one. Less than a foot long. Probably wouldn't have pierced the glove leather if it had been inclined to strike. I dropped the log when I saw it and gave it some space. It promptly retreated into the leaf litter. Wasn't really a danger but it was certainly startling.
I'm pretty used to working in the woods. I always make a habit of kicking logs before stepping over them or attempting to move them. Honestly when working Florida I would worry more about scorpions and spiders than snakes.
The exception being the snake in the boat stories that seem pretty common. For some reason Water Snakes seem to like to sun bath on tree limbs then drop in to the water when startled. This sometimes ends with them dropping into the boat that startled them. Now I know rationally that water snakes are harmless and Moccassins don't typically climb trees but a water snake sure look like a moccassin at a glance. I'm glad I've never had to make a split second decision to identify the snake that just dropped into my boat and decide whether I might like to take a quick swim.
None of the locally occurring scorpions are actually dangerous but they sure can be painful. If you're working around Palmettos you can bet they're nearby (though hiding). Haven't seen them much in the Tampa area but they're all over the Miami area, especially as you go south towards the Keys. Take a UV lamp out at night and point it at some palm trees and you'll usually see a bunch of them within a few minutes.
I've had to clear Black Widows out of electrical junction boxes at work several times. They seem to like them a lot. Everyone I've seen has been in Polk county though. I'm sure they're all over but they seem to be more plentiful out that way.