See the problem, the reason, the Senator from Saskatchewan cheated on her expense thingys is coz, as she told CBC's The National, "There's a lot of paperwork particularly in government, every time you move, every time you go anywhere. Sort of more paperwork than is humanly possible to keep on top of. So I made mistakes..."
Yeah. Surre. Right.
Plus she has no staff and making a paltry six figure plus salary she cannot afford an accountant, a tax lawyer or batteries for her calculator.
Or she is lying.