The Golden Rule.

It will never cease to amaze me, cliche though it sounds, of how desperate and petty people can be during arguments.
Just because someone is mad does not automatically give them the right to begin a public war of bullshit and slander. Especially when the attacker forgets the one crucial rule to being petty: Know your enemies secrets. Just directing general "fuck you"'s and snide comments doesn't get the job done. Not that I condone jabs and stabs at people, but when it happens, I do like to see it done right. So, get to know your attackee. You never know if a best friend might end up a foe. But make sure you don't let your secrets out. That would be a bad idea. If you were base enough to slip up and let details out...all you could do in a fight would be to defend your actions, to essentially do the dirty work and make yourself look scummy. And that only makes you seem, how to put it, Foolish.