Or need fish so bad they intentionly line them.
I tried to take a quick digiral camera vid of a guy "flyfishing"
below me but all I got was sun glare.
It was the classic sr power sweep.
3 #2 shot (on this water) Cast upriver.
Immediately lower the tip and lead the hook thru the pocket.
I'm sure if he had hooked a fish in the mouth the odds were pretty high it would have not taken the fly.
I was gonna title it NOT FLYFISHING.