Needs review
Source: Drow of the Underdark

Description: Vermin regard the character better than they would normally.

Prerequisites: CHA 15

Whenever a vermin is about to attack you, you can attempt a Charisma check (DC 15 + 1/4 the vermin's HD) as an immediate action. If you succeed, the vermin cannot attack you for 24 hours.

If you attack a vermin that has been affected by this feat, you lose the feat's benefit for 24 hours.