Dave,
Keep it up by all means, Keith, I am completely underwhelmed by your attempt at abuse. It is pretty poor even by the standards set by your mate. But I will give you some advice. Never again say that you do not resort to personal abuse or you can be certain your feeble attempt will be called as evidence to the contrary.

It was not personal abuse Dave. I don't do that.
I am disparaging the morality that allows you to pursue me because once, three years ago, I said "fraudulent" instead of "vulgar and fraudulent," while you tell nasty, vicious lies about me, claiming I said things I never have or would.
You blatantly lied in a particularly offensive way. I just dropped one word that did not even change the meaning of what was said.
Your morality is shit Dave, but I would still not subject you or anyone else to personal abuse.
I am better than that.
Different morality.