I refuse to believe that Freud was right about basic addition. In the 60s, my mum once went to hospital because she was having unbearable menstrual cramps. Weak from pain and in a wheel chair, a doctor approached her and gently told her that she was 'punishing' herself for not being a man.
My mum looked into his eyes and said "That's a utter load of crap."
The nurses behind the doctor muffled their laughter.