The Adventures of Tintin partially deaf physicist and a regular character alongside Tintin, Snowy, and Captain Haddock. He was introduced in "Red Rackham's Treasure", and based partially on Auguste Piccard, a Swiss physicist. The leading characters do not initially welcome his presence, but through his generous nature and his scientific ability, he develops a lasting bond with them. Eventually, by the end of "Land of Black Gold", he becomes a resident of Marlinspike Hall. Normally mild-mannered and dignified, Calculus occasionally loses his temper and acts in a spectacularly aggressive manner in response to actual or perceived insults, such as when Captain Haddock belittles his
The Adventures of Tintin Sexuelle de Tintin" ("Tintin's Sex Life"), featuring Tintin and the other characters engaged in sexual acts. Another such example was "Tintin in Thailand", in which Tintin, Haddock, and Calculus travel to the East Asian country for a sex holiday. The book began circulating in December 1999, but in 2001, Belgian police arrested those responsible and confiscated 650 copies for copyright violation. Other parodies have been produced for political reasons: for instance, "Tintin in Iraq" lampoons the world politics of the early 21st century, with Hergé's character General Alcazar representing President of the United States George W. Bush. Written by the