One more tip for fishing snaggy areas is to slip a section of a drinking straw over a chunk of pencil lead. Depending on the size of the straw, you may have to put a little crook in the lead to keep it from slipping off, but it really keeps it from sticking to rocks.
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"Never argue with an idiot. They'll just drag you down to their level, then beat you with experience."
-Dilbert