I keep my Rapala filet knife visibly stuck in my belt and keep it as sharp as a straight razor.
I also have a fish billy stuck in my wader belt that's the same size and weight as an asp - that's the baton LEO's now carry instead of the old PR-24. I actually do use it to stiffen fish I'm going to keep, but it could really be used otherwise.
Time was that an idiot bent on relieving you of your wallet wouldn't **** with a fisherman - they knew a guy familiar with hunting and fishing is more than likely very capable of taking care of himself.
A good many of my friends are cops and I've been taught a few things with a Monadnock that will end a confrontation in short friggin' order if necessary. I was in the bar business for more than 25 years, full and part time time and some of the places were nicer than others I worked - I had to jump into more than a couple of brawls, and I could still do a one handed vault over a bar into my late 40's. My eye-hand is still surprisingly wicked for an old fart, too...
Yup, back in the day there was nothing like jumping into the middle of a New Bedford square-dance to get your motor runnin'
Ahhhhh...the good old days.........