|If you keep flushing pee|
this is what the world will look like.
In an effort to conserve water, many people employ the motto "If it's yellow let it mellow. If it's brown flush it down." This essentially means only flush the toilet when you've taken a dump. The only real problem with this saying is a huge one. Urine and feces colors aren't always just yellow and brown respectively. For instance, if you were to go by this saying and peed brown you would then be forced to waste a tank of water to flush pee. Brown pee can be rather disturbing, but it's usually just a sign you're dehydrated. It's still just wee and shouldn't necessitate a full flush. Also, if you ever poop and it's yellow, that is pretty scary experience. You should collect a sample for a doctor to analyze, but once you do, FLUSH THAT. No one wants to walk into your bathroom and see a big yellow mustard shit in there.
While I do agree with not wasting water to flush pee, this saying is just not specific enough. This saying should change from "If it's yellow let it mellow. If it's brown flush it down" to simply "Only flush your turds". I know it's not as catchy and it doesn't rhyme, but it's the right message and being right is more important than being cute.