everything in my own immediate experience supports my deep belief that I am the absolute centre of the universe, the realest, most vivid and important person in existence. We rarely talk about this sort of natural, basic self-centredness, because it's so socially repulsive.... Other people's thoughts and feelings have to be communicated to you somehow, but your own are so immediate, urgent, real....
The remedy he proposed:
[Instead:] if you're aware enough to give yourself a choice, you can choose to look differently at this fat, dead-eyed, over-made-up lady who just screamed at her little child in the checkout line - maybe she's not usually like this; maybe she's been up three straight nights holding the hand of her husband who's dying of bone cancer, or maybe this very lady is the low-wage clerk at the Motor Vehicles Dept who just yesterday helped your spouse resolve a nightmarish red-tape problem through some small act of bureaucratic kindness. Of course, none of this is likely, but it's also not impossible - it just depends on what you want to consider.
http://m.guardian.co.uk/books/2008/sep/20/fiction?cat=books&...
What works for me sometimes in dealing with customer-service folk is to ask them what they would do in my position.