“Trespassers will be shot. Survivors will be shot again” (property sign)

The usual sign is: “Trespassers will be shot. Survivors will be prosecuted.” The humorous take on that sign is: “Trespassers will be shot. Survivors will be shot again.”
 
The “Survivors will be shot again” sign dates from at least the early 1980s and has been posted throughout Texas and many other states.
 
     
Free Republic
Resident shoots man on his property (TX)
Forth Worth Star-Telegram ^ | December 21, 2006 | DOMINGO RAMIREZ JR.
Posted on 12/21/2006 7:49:02 PM PST by DaveLoneRanger

FORT WORTH — The two warning signs at Abel Sisneros home should be enough for trespassers.

The sign of the front door says: “Warning. Nothing inside is worth risking your life for. Owners of this property are armed and highly skilled to protect life, liberty and property from criminal attacks.”

And consider the sign on the front window: “No trespassing. Violators will be shot. Survivors will be shot again.”

But Sisneros, 25, said Thursday he still had to shoot a man in his home early Thursday after the man broke down the front door and entered the home.

“With all those signs, he still tried to get in,” said Sisneros, an AutoZone sales manager who goes to the firing range at least once a month. “I can’t believe it.” 
     
12 November 1967, Fresno (CA) Bee, pg. B1:
Another one to cut the mustard was spotted by Supervisor Gene Hanessy and Court Clerk Steve Poole while hiking in the Mojave Desert area: “Trespassers Will Be Shot. Survivors Will Be Prosecuted.”
   
2 March 1983, Wellsboro (PA) Gazette, “Travelin’ Man” by Warren Goodrich (Dateline from Dallas, TX, but with a report about Clyde, TX), pg. 5, col. 2:
The customers were mostly “good old boys” with boots and ten-gallon hats. On the walls were corny sayings, such as: Is there life after death? Trespass and find out.
 
Warning: Trespassers will be shot. Survivors will be shot again.
 
Wanted: Filthy, Dirty Bart. $500 Dead. $200 Alive. $400 Bleeding Bad.
 
11 March 1983, Los Angeles Times, pg. OC A1:
Signs in his window warn, “Never Mind the Dog—Beware of Owner” and “Trespassers Will Be Shot—Survivors Will Be Shot Again.” Perhaps to add emphasis, there is a National Rifle Assn. decal on the front door.
 
22 October 1987, Washington Post, pg. E2:
Decals and bumper stickers await purchase: “Kill ‘em all, let God sort ‘em out”; “Warning, trespassers will be shot, survivors will be shot again”: “Is there life after death? Trespass here and find out”; “Special Forces: Mess with the best, die like the rest.”