The character of Ethel initially remained on the show for 12 years, although her appearances towards the end became more widely spaced and she only returned to the show intermittently. Off-screen Gretchen Franklin retired, however 3 years after her last brief appearance Ethel was reintroduced to the show for one final and highly controversial storyline. The storyline involved her old friend Dot helping her to commit suicide. When Ethel Skinner became ill in September 2000, she asked Dot to help her when the time finally came for her to pass away. Dot had to make a decision that went against her moral and religious beliefs. In the end Dot decided that friendship was more important and so she helped Ethel die peacefully. Written by Simon Ashdown and directed by Francesca Joseph the episode ended with a touching scene in which Ethel tells a weeping Dot "you're the best friend I ever had". The finishing touch was the use of an alternative end title music, replacing the dramatic drum beats with a war time orchestral piece. The ramifications of this storyline were immense for the character of Dot, and the consequences of her actions were examined in detail - which included a crisis of faith. Such was the controversy surrounding this storyline that the University of Glamorgan uses the plot as part of their new approach to the study of British criminal law. Part of the law foundation course involves studying the soap opera and giving students the chance to decide if Dot Cotton's character is guilty of murder.