ugh, this really bothers me! I've never had an encounter until a few weeks ago (and thank god it wasn't as confrontational as the OP!).
I live on a big Dutch barge moored in the Thames by Tower Bridge. Our mooring has a keypad entry on the gate, and you walk across a bunch of barges with walkways and gardens on top to get to the various boats. It's absolutely beautiful and has been featured in a bunch of gardening magazines, and we only open up to the public for one weekend out of the year for Open Garden Squares Weekend. We throw a big party and welcome the visitors and have a bakesale for charity and generally make it a village fete atmosphere.
So after killing myself baking several hundred cupcakes and cookies and selling them all morning, I sat down in our front room to have lunch with the door open (as I do when it's nice out). And then I see, just at the entrance of the neighbour's boat, a man pulling down his toddler's trousers, about to instruct him to piss into the river, right at our neighbour's front door, not 2 feet from several hundred garden visitors, and in a place where the kid could very easily fall into the river! So I stepped outside and said "Excuse me, could you please not do that? People do live here you know." And he seemed shocked and pulled his kid's trousers up and answered back something about being told to pee there (an absolute and utter lie!!) and went away.
I mean, really. I hardly go and piss on his front door! And there were toilets available on the moorings if he'd actually asked anyone, as well as about four pubs and restaurants within sight he could've gone to. It really was the only downer on the whole weekend, and reminds us again why we don't let random outsiders in to our nice little floating village.
