Beastly

Wild empathy.

You are vulnerable to the following list of spells that affect animals, as well as those which affect your own creature type: animal trance, calm animals, charm animal, dominate animal, hide from animals, hold animal . Additionally, you suffer a -2 penalty on all Charisma-based skill checks except Disguise, Handle Animal, and Use Magic Device. Anyone observing your mannerisms who possesses the wild empathy class ability can recognize this flaw immediately.

You have more in common with beasts than you do with your own race.