Kind of an older article, but still relevent. Remember the comic book that the Mexican government created to help Mexicans sneak into the United States? Well, if you don't that's okay...this English translation will explain it all for you:

http://www.qando.net/details.aspx?Entry=789
(scroll down a bit to see the fun pictures Mexico created)

Basically, if you are a Mexican coming to the US illegally, don't beat women or have loud salsa parties, or The Man will come knockin'.