| 41. | The Dreadnoks also make a habit of laughing gas or tossing victims into pools of man-eating piranhas.
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| 42. | The nitrous oxide, also known as laughing gas, was delivered in a continuous flow through a mask.
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| 43. | The Joker quickly subdues both with a burst of laughing gas from one of his many gadgets.
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| 44. | "Let's equipt everyone with laughing gas and he who laughs longest and loudest wins the war ."
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| 45. | 2 Charged in MIT Laughing Gas Death
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| 46. | After a few puffs, people would start " cavorting around, " triggering the nickname, " laughing gas ."
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| 47. | :BTW Is laughing gas still used?
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| 48. | With the arrival of the road, Hall opened a gas station, the " Laughing Gas Service Station ".
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| 49. | If you're really scared, dentists may also suggest nitrous oxide, or " laughing gas, " before work begins.
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| 50. | "First, they give you laughing gas and you float around the room for a while, " he says.
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