Make a self-control roll whenever you experience a clear social slight or “snub.” On a failure, you lash out at the offending party just as if you had Bad Temper.
Any “unnatural” creature sets off this fear. You have -1 to -4 on the self-control roll if the monster seems very large or dangerous, or if there are a lot of them. Note that the definition of “monster” depends on experience. An American Indian would consider an elephant monstrous, while an African pygmy would not!