Peter Railton

[W]e may, without realizing it or even being able to admit it to ourselves, develop patterns of behaviour that encourage or discourage specific behaviors in others, such as the unconscious means by which we cause those whose company we do not enjoy not to enjoy our company.

Peter Railton, ‘Moral Realism’, The Philosophical Review, vol. 95, no. 2 (April, 1986), p. 187