Forget the damage to vehicles (slashed tires, broken windows, etc) and the rude people who fish right on top of you when you they see you catch even one fish. What worries me most is the threatening/dangerous ones. The drunks in boats, the drunk bank fisherman that threatren to beat the .... out of you and your wife (this has happened twice while bank fishing). I called the police in both cases. In one case no one ever showed up (They said they were very busy), even after several calls . In the other the police talked to the individuals and then came up and said they were not moving and I should just leave. The people who come along and cast across your lines, cut them and then fish in the spot where you were fishing. Bass anglers in tournaments that will 'tell' you they are going to fish your spot They run over your lines with their trolling motor and say they 'warned' you. I was out last summer in the boat and a drunk came by us and started circling us. After a couple passes they started taking their empty beer cans, filling them in the lake and throwing them at us. I got the boat registration number and called the water patrol. They said they would be there as soon as possible. My wife and I waited 2 hours and they never showed.
Now some of these are major concerns and some less of a problem but when you are approaching 70, have a bad heart any of these issues is threatening. I am like most of you guys, I get very upset and what to holler, scream and pound someone BUT I can't do that. I have to stay calm. After a bad day on the lake I spend a couple days feeling terrible, erratic heart beat and am laid up until it settles down. There is no sense having a heart attack over this. I miss my fishing very much BUT I am still alive.