Ralif Redhammer
Legend
Poor thieves and assassins, back in the day. If the poison traps didn't get you, the party paladin was frequently there to take up the slack.
Same as if the PCs didn't check out what was down that hallway in the dungeon back in the day and didn't get whatever treasure and XP was to be had down there.
One thing working against them was that their saves vs poison weren't very good*...which makes little sense, in that one would think Thieves and Assassins would have at least a bit of training on how to deal with poison before it took hold. And as it's the Thief or Assassin who is most likely to be exposed to poison, yeah, the deck's stacked against 'em a little bit.
* - because for some reason poison was lumped in with paralyzation and death; it should have been its own category. I split it out and made the Thief group better (pretty much swapped Cleric and Thief); so far, so good.
Same as if the PCs didn't check out what was down that hallway in the dungeon back in the day and didn't get whatever treasure and XP was to be had down there.
Which is fine if the party stay on the rails; but if they decide to go do something else, or somehow manage to bypass the "ding" location, they'll never bump.