Daphne describes Shaggy as "the swingingest gymnast in school" just before he leaps from the top of a ladder to an open window a few feet above. This is a rare bit of background information for one of the characters in this series; and it's a rare reference to school. (In "
Bedlam in the Big Top (1969)," Shaggy describes himself as a "track man" who can run very fast.)