Imagine if they all flushed at once. Like, that could cause the worlds waterworks to seriously malfunction.. Ewww, people could end up turning on the taps in the hopes of making a nice refreshing glass of h2o, only to end up with a pint of piss--or, as it's known as by its other name, XXXX
Watch it mate. It's not Fosters. Or worse - American beer!