So, there are two ways, it seems, to do this poison bit thingie of Guiverna's.
The MuAq above, and the PeCo in her Development thread. This could very well be a "more than one way to skin a cat" scenario, but I can where both ways are effective.
So: straw poll time. Which one do you think is better under the circumstances. Not really "which one is more cost-effective", but more "which one comes closer to doing what it's intended to do?