I would really have to question why anyone would attack a fisherman, who at the very least is armed with a 8 to 9 foot graphite or glass rod that could do some serious damage from a distance..... Then there is the fact that many or most carry a knife and/or other tools.
I just got my Concealed Carry Permit and will be carrying from now on. I also just ordered a Glock 26, 9mm. Nice little hand gun and easily concealed in my breathables. Don't mess with an old Vet.