The second half of that is the Bristol Stool Chart.
Years ago, I found myself drinking in “Quark’s Bar,” a Star Trek themed bar in Las Vegas (don’t hate me, it was the cheapest place to drink) (also, pretty cool).
They served “Trillian Ale” or some such, basically lager laced with blue food colouring. I managed to sink a heroic amount of the stuff. The following morning I went for my daily ablutions, went to the loo, turned to flush and was met with a high-vis fluorescent green Richard winking back at me. That woke me up pretty quickly, you probably heard the screams.