Dallas Milholland and Blake Adams in Sweeney Todd There were a fair number of shocks at Saturday's presentation of the Clinton Area Showboat Theatre's Sweeney Todd, the Demon Barber of Fleet Street. But one of the biggest came before the show even started: When the house lights dimmed, I looked down from my chair in the Showboat's balcony, and gazed upon ... nearly a half-dozen rows of completely unfilled seats.