I Love to Laugh Mr. Wigg, is said to float because of an excess of "laughing gas", although it is clear that the term is not used in the chemical sense. So-called "laughing gas" (nitrous oxide) was one of the earliest effective anaesthetics developed in the Nineteenth century. it was popularised by dentists, for pain-free tooth extractions, as well as by showground novelty booths. Customers at the booth would be gassed and, as they were recovering from the drugged sleep they often felt euphoric and giggly. Hence the name. A famous 1931 British comedy sketch starring Cicely Courtneidge, called "Laughing Gas", was based on
CR gas People occupying an area in Notre-Dame-des-Landes against an airport project suspects the use of CR gas by French Police and Army on April 2018. In the late 1980s, CR was used in the townships in South Africa. It caused some fatalities, in particular among children. Because of its alleged carcinogenic properties, the United States does not utilize CR for riot control. The U.S. military classification for this chemical agent is combat class chemical weapon causing serious side-effects for humans. CR gas CR gas or dibenzoxazepine (also referred to as DBO), or its chemical name dibenz["b","f"][1,4]oxazepine, is an incapacitating agent and