Opsec. No signs, no stickers, no shirts, no flags, no symbols. When SHTF I don't want my neighbors to know I'm the Nazi with 20 firearms and 10,000 rounds of ammo. I'm even careful not to let them see the gun cases when I transport. I just blend in. If anyone from Poal saw me they'd probably mistake me for your average suburban liberal. They'll only know if I have to use them.