Sorry for you guys, really:
Property automaticly posted. No can go on private property without written permission on their person. Go on agricultural property with a gun and it is a felony, period. A fence alone is proof positive that you did not want anyone on your property, it need not be posted by a sign.
No castle doctrine, no need to retreat, if you feel threatened on your property, shoot the SOB.
That is Florida guys and is what the anti gun crowd got their drawers in a wad over, it is the law in the sunshine state, plus the right to carry, unless a real good reason can be found to deny a permit.
We have red wolves at the farm and I ride the farm with a Mini-14 on the tractor or cart at all times. Plus a handgun in plain sight on my hip. Nice advertising when I mow along the fence, even outside, I am on my property. Most folks notice the guns very quickly.
I have farm 12 ft tube gates, a chain and a combination lock with 6x6 posts sunk four ft in poured cement. We have not had much problem in 2 + years. I also have a mile of 5 strand high tinsel wire fence.
Ed