wrench was the wrong way around
no wonder he hit his finger!
shareYes it was. But you also use a pipe to extend the length of the pipe wrench. Which them crews would have. You certainly wouldn't risk smacking it with a hammer where they were.
Also, for a spark to ignite gas fumes, the fumes still have to be rather strong and concentrated. Enough so they wouldnt be standing all around like they were and certainly wouldnt be banging metal on metal.