I was not having a go, D. Ward. I appreciate that you, like all of us, need to make a living and I say fair play to you for coming up with new ideas. I was merely trying to draw your attention to a possible drawback which may be worthy of consideration. If you decide to go ahead with your idea, I am not trying to stop you, but rather I genuinely hope it works well for you.
You are quite safe from being sued by me for two reasons:
1. Unless you live or work near me I will not be falling over on any path that you
clear.
2. When I fall over, I don't reckon that anyone else but myself is to blame.
John.