As someone who has quite a few hours doing back-n-forths in Ag Cats, I've been met by law enforcement officers more than once upon returning after a load. There's always going to be someone to complain, and it gets worse every year. Like Grampaw said, there's many many hazards out there to deal with on every pass, and the biggest killer is complacency on the part of the pilot. It is real easy to let your mind wonder just for a split second at the end of a busy day, and that split second is all it takes to put yourself into the ground, or an obstacle. GPS has killed more than a few pilots as well, because they get fixated on following the light bar and stop watching outside. But even with all the hazards, both manmade or otherwise, it's some of the best flying in the world if you're one of the few pilots that can handle it.

By the way, biplanecrasher, if you didnt know, that's an Air Tractor AT-301 in your pictures, powered by the Pratt & Whitney R1340 radial, which puts out 600 hp. With a two blade prop (probably Hamilton Standard with Ag-100 blades) it's definitely loud! A lot of guys that are running round motored Air Tractors and Ag Cats are going to three blade props, because of the noise concerns. The three blades are definitely quieter. The last Ag Cat I flew had a geared 1340 on it turning a three blade Albatross (yup, the seaplane) prop.