Rigoletto is a nasty, Don Rickles-style comedian, the Duke's lapdog, alternately encouraged and kicked, whose mockery of Monterone (here, a sheik), whose daughter has been raped by the Duke, comes back to haunt him when his own daughter, Gilda, is taken and destroyed.
The 1965 "Beach Blanket Bingo, " for example, featured subplots involving a mermaid, a motorcycle gang and a skydiving school run by Don Rickles, and comic touches by silent film star Buster Keaton.