In the movie Psycho
Norman Bates committed matricide by killing his own mother because she was constantly meddling, screaming and calling all his
girlfriends sluts and dirty. What was even more freaky, is that after he buried her, he began to miss her, so he dug her back up again and pretended that she was still alive by dressing up as her and
pretending that he was her. Norman also kept her corpse fresh with taxidermy and whenever he was let out of the nuthouse he would constantly dig his mother up to be with her.