This is the clincher for me. A chemical toilet would be purgatory, the smell of the chemical just says to me "this is as bad as things can be", parking in a lay-by overnight with traffic going by is pretty bad too. I know of people who have campers or whatever they call them and think they are wonderful, but they aren't for me. I have recently - as in the last 2 days - come up with a massive project that I may commence with. I wish I wouldn't get such ideas, I get small business ideas monthly which I chuck out as I they usually involve having customers, something that strikes me as an unnecessary inconvenience and I have little enthusiasm for building anything bigger. I have enough to keep us going, more money means more stress and my ego isn't that needy.