And those are just a few examples out of the many, many more cases that exist. I probably put such signs up myself when I was ruler. It's sort of the natural thing you'd expect at a border sign, though. 
Yeah exactly. I have yet to see other examples where we don't just make the distinction between friends & foes.
Logged
Osgar (Thalmarkin, BT), Jeames (Perleone, EC)
PAUSED: Nasgar (Avernus, DWI), Jari (Outer Tilog, COL)
