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
Laughing Gravy Laughing Gravy Laughing Gravy is a 1930 short film comedy starring Laurel and Hardy. It was directed by James W. Horne, produced by Hal Roach and distributed by Metro-Goldwyn-Mayer. (The eponymous dog's name is a sly reference to liquor - Prohibition was still in force in the USA at the time the film was made.) On a snowy winter's night, Laurel and Hardy try to keep their pet dog 'Laughing Gravy' hidden from their landlord, mostly without success. The landlord eventually orders them to leave, but fate takes a hand. Stan and Ollie in bed, when Stan’s snoring wakes up