http://revach.net/article.php?id=3704

Section:  Avodah   Category: Chanoch L'Naar
Parshas Emor: Rav Shlomo Kluger - The Telltale Sign, A Slippery Slope Or A Steep Drop

Not every time a child succumbs to the winds of change is it something he learned from his home.  Believe it or not there is a Yetzer Hara  who challenges children even from perfect homes.  The Chinuch Malchusi brings from Rav Shlomo Kluger that there is however a big difference between these two children. 

If the child learned his bad ways from his home than his fall is instant.  Right from the start he will emulate the bad traits that he is accustomed to seeing at home without any hesitation or conscience.  If however the child received a good chinuch and has fallen victim to the temptation of the yetzer hara, then his fall is very gradual and deliberate as it is accompanied by inner turmoil and guilt.  The gemara in Shabbos (105b) says that the yetzer hara works very slowly and deceptively, baiting his victim one small step at a time until he ultimately reaches the lowest level.

This is pshat in the pasuk (Emor 21:9), "UBas Ish Kohen Ki Seichel Liznos Es Aviha Hi Michaleless", the daughter of a Kohen who has an improper relationship is a disgrace to her father.  Why her father?  Because "Ki Seichel", right from the start; "Liznos", she has gone straight to committing a horrific and unacceptable aveira.  This is a clear sign that her wrongdoings are a product of her upbringing.  Therefore the torah testifies, "Es Aviha Hi Michaleless", her behavior speaks volumes about the immorality of her father.