The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
Two years ago on the lower end of Penns Creek, just uo from Weikert, I lost a beautiful Brodin "Gallatin" net with the "Ghost" bag. Posted my loss in a couple of forums, stopped by the fly shop on the river, and offered a $50 reward. Never heard a work.
I don't know why but over the last ten years I have lost five fly boxes of dry flies on the West Branch of the Delaware. The first loss was a Myran plastic box about 1.25" x 4" x 6". It was full of Hendrickson & Red quill emergers, duns, and spinners. Also over a dozen Para leps. Well over 100 flies. Then I lost a large ripple box 4" x 7" just crammed full with GD & BD nymphs, emergers, duns, and spinners. Next a small Myran box filled with over 100 Trico duns and spinners #20 - #24. Then a C&F box filled with freshly tied #16 & #18 Sulfur emergers and duns. Lastly another small Myran box with about 80 ants of various colors, winged and unwinged, and various bettles.
I re-tied all the flies except the ants and beetles. Now I am constantly checking to see if my vest pockets are zippered shut.