Want to hear something real crazy? My brother and I have had a SIN since we were very young. Our parents set up a trust fund to help pay for our education. It turned out they didn't have to pay as much taxes or something once it was in our names. Anyways, two years ago, my brother gets his tax return back and they have some questions about his identity. Turns out that somehow his date of birth got changed. He calls up to try to clear up the matter, and when his birth date doesn't match the one they have, they wouldn't tell him anything. It took him a week of phone calls and BS before the matter got fixed. To his credit he refused to back down, and finally found someone high up enough to switch the date back. All through this they maintained it was somehow his fault until the last person he talked to had some common sense. Unbelievable...