How about this for a rule:

[xiphias]

If you display a Confederate flag, you're not allowed to call someone else un-American.

Comments

[browngirl.livejournal.com]

The legal right to be obnoxious or hypocritical is not the same as a moral justification for obnoxiousness or an exemption from hypocrisy.

[temima.livejournal.com]

Another way to say it, "You have the right to say stupid things, and I have the right to tell you why what you're saying is stupid."

Now if I only could practice that in my workplace.