I recently heard of an incident on a favorite Oregon river of mine (public land) where a bank angler had to shoot a big, off-leash dog that was attacking him. He then had to deal with an unhappy dog owner. This scenario makes me cringe, as I really like hike-in angling on state and federal lands. Bears and cats don't really scare me, but aggressive dogs and their owners do. I wonder how common this is? Have any of you had serious incidents with aggressive dogs while fishing NW rivers?