Isn't that dangerous cleaning a roof somebody might fall off and die?
Other workers and/or members of the public in the area could die if you get it wrong.
You might drop something on somebodies toe from a great height… .and they could die
I don't think the weather is very nice to do that sort of work….especially near overhead power lines. Electric shock through a carbon pole could cause somebody to die.
Or the mans cat could trip over all of those pipes and die.