A journalist tried to do so. Here's how it went.
http://www.politico.com/politico44/perm/0811/call_uncle_sam_5c130fdd-0e34-4b04-99e1-3d923ea3919e.html
TLDR version: It didn't work.
--
SmartMuffin - Because anything less would be uncivilized
http://img.imgcake.com/lolkrugmanjpgry.jpg