You need to produce a specialised guidebook...All three are dehydrated. After a bout of kidney stones a few years ago, I was advised to make sure, for ever, that I pass 3 litres of 'water-clear' pee every day. Trust me, that takes some doing. I can't keep it up for more than a few days and it really messes with work when I'm travelling. I've peed in every lay-by, services and McDonalds in the country.