You've probably heard that New Hampshire dentist Elaine Brown and her husband Ed, who holed themselves up in their house rather than pay their delinquent taxes, were finally brought to justice a couple of weeks ago. Their web site remains, in which they claim to be political prisoners ("First they came for the tax-evading yahoos, and I said nothing, for I was not a tax-evading yahoo...") and demand to be shown the law which renders them liable for federal taxes (26 USC secs. 1 and 63).
A Louisiana dentist, Dr. Louis Genard, was also recently convicted of tax evasion. His excuse: he's not an American citizen, he's an ambassador of the Kingdom of Heaven. (I wonder if he can be deported?)
Of course, I shouldn't be casting stones from inside the glass house of law school, as an Indiana law student is facing charges for machine-gunning his Real Estate Finance textbook.