And why, exactly, is it that I have any responsibility at all in proving myself to someone who, by his actions and words, shows nothing but contempt for pretty much anything I might find interesting or worthwhile?

Not to mention the numerous digs at my intelligence or worth.

If you want me to treat you as anything but an assh*le not worth the time to be polite or friendly to, then maybe _you_ need to think about _your_ behaviour.

I owe you nothing, in fact I owe you less then nothing and I certainly don't owe you any kind of friendliness.