But who needs a flush toilet when you have wild open yak pastures and alpine meadows?

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More people now have mobile telephones around the world than have access to a flush toilet.

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And I did enjoy a relatively peaceful ride with plenty of leg room, a flush toilet and early-'80s, MTV-style patterned upholstery.

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The dual-flush toilet I used had a cheap, plastic flushing mechanism that was already broken.

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People flush a lot of oestrogen down the toilet.

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This creates a mildly disinfecting solution that can be used to flush the toilet.

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Engineers like to point out that it takes just one-and-a-half gallons of water--one toilet flush--to create enough hydrogen for an average day's driving, 30 miles.

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