but what you see as an insult may not be one to me.
The cartoons of Prophet Mohammed in Denmark are a perfect example of that. Millions felt offended, fatwas were issued, people wanted someone's head on a stick -- all over some pen and ink drawings.

It's a subjective thing -- so you can't really make rules against it without limiting freedom of speech/expression.
Best defense is to grow a thick skin and not let the idiots get to you when they do insult something you care about.

Loved the article posted above -- it says it all.