Hahah, I just have to reply and say I loved the original comment and was happy for the laugh. Obviously this is the answer to the riddle of

> Given a 3-liter container and a 5-liter container, both initially empty, and access to tap water, how can you measure exactly 4 liters of water without using any additional containers

I've offered and received some convoluted metaphors recently, love leaning hard into this one.