reality/game show idea

People will send in an audition tape to the producers of themselves
speaking in a fake accent... the selected entrants will then have to
perform various tasks (like opening a bank account, asking for help in
a store, participating in a book club) while using this fake accent
and while wearing a hidden video camera... the person who can go the
longest without being found out or confessing what is going on (it is
ok to laugh like crazy as long as you stay in character) advances to
the next show. They are paid in proportion to the amount of time they
can keep it up. Producers would screen out professionals and focus on
people with crazy accents.