See Maz Jobrani's interview on the humorous commercial he made with Iranican.
http://www.celebmagnet.com/2010/06/maz-jobrani-video-interview-census-2010.html
why he says Iranians always put “zero” on forms: Maz Jobrani Explains Iranican's Census 2010 PSA .
Iranican Census 2010 PSA with Maz Jobrani - Zero