Boyington: Yes. Two RAF Hawker Hurricane pilots had been flying above 50 Japs of the main force. They saw a P-40 and thought he would join them, but instead the AVG pilot threw himself into the whole group, with Japs all around him, guns blazing and confusion all over the place. The two Brits dropped to assist, cursing the crazy man who had started the melee. They all managed to get out of it, and the Brit I was talking to dropped a slug on the bar. He found it in his parachute after he landed. The American turned out to be Jim Howard, and it figured that he would get the Medal of Honor for doing the same thing against the Germans later.
Although acetone occurs naturally in the environment in plants, trees, volcanic gases, forest fires, and as a product of the breakdown of body fat,  the majority of the acetone released into the environment is of industrial origin. Acetone evaporates rapidly, even from water and soil. Once in the atmosphere, it has a 22-day half-life and is degraded by UV light via photolysis (primarily into methane and ethane .  ) Consumption by microorganisms contributes to the dissipation of acetone in soil, animals, or waterways.  The LD 50 of acetone for fish is g/L of water (or about 1%) over 96 hours, and its environmental half-life in water is about 1 to 10 days. Acetone may pose a significant risk of oxygen depletion in aquatic systems due to the microbial consumption. 
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