In addition, Calvin uses a cardboard box as a sidewalk kiosk to sell things. The adventures of a boy and his pet tiger. The first took place from May 5, to February 1, , and second from April 3 through December 31,
November 18, . British artists, merchandisers, booksellers, and philosophers were interviewed for a BBC Radio 4 half-hour programme about the abiding popularity of the comic strip, narrated by Phill Jupitus. Perhaps the most disturbing use of Calvin and Hobbes was on Seth Green's Robot Chicken , which did a stop-motion segment in which the parents think Calvin has gone insane, because he imagines his stuffed animal is alive.
The strip for Sunday, June 21, , criticized the naming of The Big Bang theory as not evocative of the wonders behind it, and coined the term "Horrendous Space Kablooie",  an alternative that achieved some informal popularity among scientists and was often shortened to "the HSK. Her last name apparently derives from the pet beagle owned by Watterson's wife's family.