The worst accent I have ever heard was in a Scottish film about lower-class drug dealers(can't remember the name). The accent was so horrendous that even though the film was in English, it required English subtitles.
Even if the open windows of science at first make us shiver after the cozy indoor warmth of traditional humanizing myths, in the end the fresh air brings vigor, and the great spaces have a splendor of their own - Bertrand Russell