DOH! These days there is just always a camera around. Seems like you can't fall down, get rejected for a kiss, rob a bank or anything anymore without getting caught on tape. This applies even to the future King of England.
There have been many people who have made a great deal of coin impersonating the rich and famous. (Just take a drive to Las Vegas and count the Elvises! ) Need any more proof? Well here's a new one for you-people that are dead ringers for William, Kate, and the Queen!