Historically, somewhat violent mobs are what helped form our country. Remember that time in Boston when a mob went to the royal governor's mansion and took everything?

I got the same one two weeks ago.

American Indian Movement style, like they did against the Bureau of Land Management in the late 60s and 70s.

If you must wear something you could always wear a ski mask (know your surroundings though). I get some great looks when I wear it to the supermarket.