When engineers and technical writers tackle instructions for public toilets, someone may have to step up and provide some plain-language, every-man translations!

Up for pee, down for poop. Simple! Spotted in a highway rest stop, kudos to the anonymous, water-aware doo-gooder that added the simplified Sharpie version to the dual flush toilet instructions provided.

Note to technical types: if your toilet how-to needs a schematic drawing, the instructions likely need editing!

Note to everyone else: An easy mnemonic for these devices: remember to PUSH for number 2! And the handle as well!