The camel greatly dislikes clear, pure water for drinking and regards muddy, dirty water as the pleasantest. Indeed, if it comes to a stream or a lake, it does not bend down to drink until it has stirred up the slime with its feet and destroyed the beauty of the water.
-Claudius Aelianus (175-235 CE), De Natura Animalium
I found this to be true, that camels are messy, easily distracted drinkers, that they seem in no hurry to have their fill even when having been driven dry for more than a week. They look up from the water, shake their heads and flap their lips, stomp and stir their feet when at a Nile bank, or stumble into mud troughs and knock them down at well flats. Water is not necessarily beautiful when you are thirsty, but it is certainly at its pleasantest.