In every young person's life there's a moment where a parent becomes tainted forever by a shameful discovery. Sometimes it's a playboy under the mattress. A vibrator in the nightstand drawer. A note from a lover. Pictures of humans having sex with animals.
Whatever it is, that image is burned forever in that young person's mind, an indelible ugliness that can never be washed away.
I just had such an experience.
My mom has a Dennis Kucinich '08 presidential campaign poster in her bedroom.