There is a group of people you just don’t like. It may be based on a past trauma or simple bigotry but you have a knee jerk reaction to them in any situation. You also have a tendency to think “they are all the same” and stereotype anyone who fits into this group. As a Minor Trait you have a low level of bigotry and simply suffer a -3 to any social rolls interacting with this group. As a Major Trait you are an active bigot who does their best to expel or even destroy this group. This trait might seem understandable if the group is ‘Daleks’, but significantly less so when the character is a racist or misogynist. The Gamemaster may decide a prejudice against certain groups is inappropriate to their campaign.