Not quite a public toilet, but a toilet in a house we were looking at with our real estate agent.
I had to go REALLY badly while we were looking at a house. I am a super fast pooper and I went to the bathroom. When I went to flush I realized that the water was off in the house. I just put the lid down and left the massive poop behind.
This is awesome! I hope this was before you knew us because if not you are in big trouble for not telling us immediately.
Sorry, this was about 4 years ago. Or I would have definitely shared sooner!