Reminds me of a story a ferrie pilot told me. He was delivering a new twin to the north-east in the winter. The plane had longer range than his bladder. He was able to maneuver to the little pilot window in the left (pilot) side window and take a leak out the window.
Later when he landed at the destination airport the proud owner and his mechanic came out to inspect the plane. As they walked around the plane the mechanic noticed something frozen on the horizontal stabilizer. He walked up to it, wiped his finger across it and stuck his finger in his mouth to taste it.
"Hmmm, its not hydraulic fluid".
The pilot turned and walked off, he couldn't bring himself to tell the mechanic what it was.
Gene