Usually, it's a submerged limbs, or root wad that does damage to worms. If you tangle with the shrubbery, you either end up losing your gear, or messing up the worm to where it has to be replaced. Fish like this type of habitat, so you are going to go through a good quantity of worms to catch fish. No way around it.
Rocks tend to grab your lead or swivel, but don't seem to kill the worm. If you're presentation is weighted correctly, it should bounce along on the rocks with no problems for a long time. Usually, your lead/swivel will get pinched in a rock and you lose the entire setup. Worm is still probably just fine...sitting on the bottom.
If you're not hookin' in to submerged woody debris and you're worm is failing, I'd start to examine how I was casting that worm.
The proper cast for a worm is a gentle, smooth, high, big arced cast. You want that worm to gently land straight down on the water. More often than not, most people cast a worm like a corky/yarn combo - hard, straight, and skip it off the water two or three times. Casting this way will almost *always* destroy a worm in a short few casts.
If that still doesn't help, I'd look in to a new worm. Here's a hint - Try some of those bass boys for your source of worms. They will be cheaper, more robust, and in all, and really darn good product. I get my worms in bulk for around .10 a worm.
Finally, I expect to lose around 20 tied up worms per person, per day of fishing. Or, if I'm fishing with Bob, ramp that up to at least 30! (Sorry Corey!
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) Tie up a roll full, and it's no problem.
Bob - next February I'll bring my own roll (or 3) of worms. You probably still haven't caught up from my day of donating your worms to the fish and river!
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