Mother never cleans up her mess
One thing that's weird in this movie is when Norman kill's the older Lady he was making out with in the car, after he kills her he's still in the mother persona while he gets rid of the body. In all of the Psycho movies Mother kills the victims and leaves then Norman has to come and clean up her mess but in this scene mother cleans up her own mess it just does'nt seem right.
It's always better to burn the evidence.- Esther