Mr. Joskins is selling quack remedies and Dr. Gordon intervenes after they make several of his patients ill. To get revenge Joskins tampers with Beauty's girth strap which injures Kevin while he is riding. Albert intially blames saddle maker Surtees but ultimately discovers the true villain.
A religion is a belief system with rituals. The missionary kopimistsamfundet is a religious group centered in Sweden who believe that copying and the sharing of information is the best and most beautiful that is. To have your information copied is a token of appreciation, that someone think you have done something good.