Self employed individuals tend to be targets for audits more so than those earning wages from an employer since there is a greater possibility of undeclared income, so you will want to be especially careful.
Forensic accounting in fact probably first came to public awareness during the O.J. Simpson civic trial when the plaintiffs used forensic accountants to search for undeclared assets.
After writing for the series Undeclared, Rogen wrote for the second and final season of Da Ali G Show, starring Sacha Baron Cohen.
Rogen was then cast in Apatow's followup TV comedy, Undeclared (2001), which focused on the lives of freshmen college students.
That's why they allow students in college to have undeclared majors.