Situationist prank is a term used in the mass media to label a distinctive tactic by the Situationist International, consisting of setting up a subversive political prank, hoax or stunt; In the terminology of the Situationist International, stunts and media pranks are very similar to situations. The détournement technique, that is "turning expressions of the capitalist system against itself," was the essential element of a situationist prank. The Situationist tactic of using détournement for subversive pranks is such a distinctive and influential aspect of the Situationist International, that they are sometimes labeled as a group of political pranksters. This tactic was used by the Sex Pistols to mock Queen Elizabeth II's Silver Jubilee celebrations. Frank Discussion of the band the Feederz is well known for his situationist pranks and detournement in the United States since the late 1970s. It also inspired the culture jamming movement in the late 1980s. The expression situationist prankster has been later established as a typical label used on those who perform media pranks or publicity stunts. By Situationists Notre-Dame Affair on National TV One of the earliest Situationist pranks, The Notre-Dame Affair was an intervention performed by members of the radical wing of the Lettrist movement (Michel Mourre, Serge Berna, Ghislain Desnoyers de Marbaix and Jean Rullier), on Easter Sunday, April 9, 1950, at Notre-Dame Cathedral in Paris, while the mass was aired live on National TV. Michel Mourre, dressed in the habit of a Dominican friar and backed by his co-conspirators, chose a quiet moment in the Easter High Mass to climb to the rostrum and declaim before the whole congregation a blasphemous anti-sermon on the death of God, penned by Serge Berna. Strasbourg scandal Taking advantage of the apathy of their colleagues, five "Pro-situs", Situationist-influenced students had infiltrated the University of Strasbourg's student union in November 1966 and began scandalising the authorities. Their first action was to form an "anarchist appreciation society" called The Society for the Rehabilitation for Karl Marx and Ravachol; next they appropriated union funds to flypost "Return of the Durruti Column", Andre Bertrand's détourned comic strip. They then invited the Situationists to contribute a critique of the University of Strasbourg, and On the Poverty of Student Life, written by Tunisian Situationist Mustapha/Omar Khayati was the result. The students promptly proceeded to print 10,000 copies of the pamphlet using university funds and distributed them during a ceremony marking the beginning