Advice for when debates get out of hand:
"If anyone will not welcome you or listen to your words, shake the dust off your feet when you leave that home or town." -Matthew 10:14 NIV
"A gentle answer turns away wrath, but a harsh word stirs up anger." -Proverbs 15:10 NIV
"Never argue with an idiot, he will drag you down to his level and beat you with experience." -Patrick Henry as per TDC
"Never attribute to malice that which can be adequately explained by stupidity." -Hanlon's Razor