You surely are not saying that some guys actualy take guns with them when they go fishing are you? Are we talking rifles incase they see some game, or personal fire arms? I just cant imagine it, Here in N.Z. the only time you are likely to see someone armed is if they are fishing the back country where they are likely to see plenty of Red deer or wild pigs to suplement the pot and these guys are very likely to stop for a chat and leave you some venison or pork!
I hope I HAVE misinterpreted your article as it would be a very sad state of afairs to have to worry about the guy in the next pool having a gun.
All the best.
Mike.