I think you knew your answer before you posted the question.
It's obvious it would have gone 2 ways, people would take the pee or you would have got a kick outta solar panel cleaning being the most popular.
Just to bring you back down to earth for a second though steve, (while you have pushed solar panel cleaning in what I consider to be a professional and thorough way) someone else would be doing it instead of you. In fact there are obviously many others.
You didn't invent the wheel, you have only learnt to ride it. Just like everyone else does.
I do have the greatest respect for your posts and how you're making it work for you though. And in my limited knowledge of the business, I do view your knowledge about it is as highly as anyone else in the field.
So I've finished with a pat on the back.
The comments have made me laugh too. The british sense of humour is unique.