Message text written by "The weather listserv for hotheads...."
>I can see the weed whackers damaging woodwork, and couldn't care less if
they beat the shit out of Dryvit, but how can it be that the goddam things
can affect granite?  Shouldn't the fish lines get destroyed by the granite?
<

WATER can erode granite, given enough time, and it's softer than fishing
line (just ask a fish). 

Personally, I think most of those gadgets were invented by guys who get off
on using power tools whether or not they are an improvement over non-power
tools. The ultimate one is the leaf blower. I whack weeds with a 'whip'
(blade on a long handle) and get just as good (or better) results. But
then, I still often use a hand 'eggbeater' drill in my workshop or around
the house, when a power drill is not necessary. 
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