A moment of awesome randomness

This evening, I noticed that a little slip of paper was tucked under the windshield wiper on my car.  My first thought?  It must be about my bumper stickers!  Okay, why in the world would I think *that?*

Because it's happened before.  Now, my bumper stickers are as follows:

* Hatred is not a family value
* Freedom of religion means all religions
* Save the earth; don't breed
* Slackware Linux

Any guesses as to which one earned this note?

if (bumperStickerIsAwesome = True)
     {
       document.Write( "I DUB THEE SIR KNIGHT OF AWESOME
       CAR")
     }

Thanks, Zebobbybird and mr. smilie at envycomics.net!