Can children be attracted to their siblings and parents?

[Shatterhand]

In many forms of the sciences, especially the social sciences what you hit is the proverbial wall called "the exception to the rule".  The problem with the exception to the rule is that when too many exception begin to pile up you either need to change the rule or come up with a new one.  Most people in the social sciences and statistics usually just place these outliers off to the side because doing the research into why the anomalies exist can be a career ender for many.  Or at worst the scientist ends up being socially ostracized.