James Jacobs
Adventurer
Poison use isn't inherently chaotic OR evil... any more so than swordplay or fireballs are. If poison were inherently chaotic or evil, the poison spell would have Chaotic or Evil descriptors, and couatls and guardian nagas wouldn't have poison bites. What IS chaotic or evil is when you use poison to murder someone... but that's no different in the end than stabbing them in the neck or burning down their house.