I had a telemarketer call to offer me a visa once. So I threw on an Indian accent and started asking him what was wrong with my work visa, and not to report me to the authorities for deportation. Then I started rambling in an accent about how I came from poverty in New Dehli, and escaped here to America in order to send money back to my 12 kids still living back home. I then hung up after swearing to him that I would go get my green card as soon as got off the phone. At no point during this was he able to say anything beyond, "No, that's not what I mean."