for instance: behaviorism doesn't @ all take account (does it?) of intrinsic variability?
or "the harvard law of animal behavior--
under carefully controlled experimental circumstances, an animal will behave as it damned well pleases"?
(see http://serendipstudio.org/bb/EncyHumBehav.html )

science itself will teach man (though to my mind it's a superfluous luxury) that he never has really had any caprice or will of his own, and that he himself is something of the nature of a piano-key or the stop of an organ, and that there are, besides, things called the laws of nature; so that everything he does is not done by his willing it, but is done of itself, by the laws of nature. 

even if man really were nothing but a piano-key, even if this were proved to him by natural science and mathematics, even then he would not become reasonable, but would purposely do something perverse out of simple ingratitude, simply to gain his point. 



NOTES FROM UNDERGROUND
FYODOR DOSTOEVSKYthe whole work of man really seems to consist in nothing but proving to himself every minute that he is a man and not a piano-key!