Most prolific in literary endeavors as a dramatist, Claus wrote 35 original pieces and 31 translations from English, Greek, Latin, French and Spanish plays and novels. His dramatic sketch "Masscheroen" was first staged at Knokke Casino and featured an all-nude cast: three naked men were given the task of portraying the Christian Holy Trinity of God the father, God the son, and the Holy Spirit; the work also made light of the Holy Virgin, a Belgian saint, and the Three Wise Men. Attacked as blasphemous and deleterious to the public's moral well-being, the light-hearted play's performance triggered a notable legal case in which Claus was prosecuted: convicted on charges of public indecency, Claus was ordered to pay a ten-thousand-Belgian franc fine and serve a four-month prison sentence. The prison term was reduced to a suspended sentence after a public outcry.