In his new autobiography I'm Chevy Chase . . . And You're Not, he claims his mother once slapped him "continually and hard, across the face. I don't remember what it was for, or what I had done. I lived in fear all the time - deathly fear.
"I always turn to it in my mind...I'll never forgive them. At their graves I didn't. It was too hard for me. You would think a grown man could shake it off, as the coffin was being lowered, to say, 'I forgive you.' I don't forgive."
Source:WENN