Laughing Gas (1914 film) squabbling. The dentist arrives, and his first patient goes in, obviously in pain. The dentist prepares the nitrous oxide anaesthesic (also known commonly as "laughing gas" due to its effects prior to and after unconsciousness). With the man unconscious he pulls his tooth, but then he can't get him to wake up. He calls for Charlie and when he arrives the dentist runs off. Charlie tries to wake him and eventually tries hitting his head with a mallet. The man revives but starts laughing. Charlie knocks him out with the mallet. The dentist then returns and Charlie is sent to
Allegations of chemical weapons use in the Sri Lankan Civil War Weapons into charges of chemical weapons use by the LTTE. In 1990 the LTTE conducted a chemical attack using commercially obtained barrells of chlorine gas against a Sri Lanka army encampment in eastern Kiran, in the Batticaloa district. This was noted as the first non-state use of a chemical weapon in warfare. LTTE also used the non-lethal agent CS gas against advancing government troops but with little effect due to the troops being prepared for chemical warfare however several soldiers developed breathing difficulties. CS gas is commonly used for tear gas in riot control but can cause severe burns. Allegations