Since he hasnt fished "everywhere" on the river, how would he know? More than likely, he repeated what a non tribal commercial told him. One thing is for sure, it won't work where there are no fish. It won't work when the boat is on the trailer.

Some approach every problem from the view, why "something" cannot be done. They will not or cannot look for ways to overcome the obstacles, they just assume the obstacles are permanent. Throughout history, they have been proven wrong.