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
Halabja chemical attack "died of laughing," while still others took a few minutes to die, first "burning and blistering" or coughing up green vomit. Many were injured or perished in the panic that followed the attack, especially those who were blinded by the chemicals. "Iranian physicians reported that victims of the chemical attacks on Halabja showed characteristic symptoms of cyanide poisoning," while other reports indicated substantial quantities of mustard gas and other chemical weapons were used. Most of the wounded taken to hospitals in the Iranian capital Tehran were suffering from mustard gas exposure. A United Nations (UN) medical investigation concluded that mustard