That’s what they always said to me… and they were right. It’s not easy being the black sheep of the family. You have to work really hard to maintain your status and reputation, which can be very time-consuming. Wikipedia says:
In the English language, black sheep is an idiom used to describe an odd or disreputable member of a group, especially within a family. The term has typically been given negative implications, implying waywardness. It derived from the atypical and unwanted presence of other black individuals in herds of white sheep.
In psychology [ed., or families!], the “black sheep effect” refers to the tendency of a group to treat or evaluate members of one’s own group who behave in a way such as to jeopardize the group’s image, more harshly than similarly unlikable members of another group, while considering the former group as a whole to be superior to, or better or more deserving than the latter.
Doesn’t that say it all?