Lithe (3.5e Trait)
From D&D Wiki
A extraordinary intuition has given you a remarkable sense for danger.
Benefit: You gain a +1 bonus to Reflex saves.
Drawback: You take a -1 penalty on Fortitude saves.
Roleplaying Ideas: Characters with this trait tend to trust their intuition more than their senses, and are hard to persuade to act against their intuition.