“I made sure it was all safe and the valve was open before I cut into it. Little did I know the gas bottle was from the tip and must have been faulty.”
If that is how he cut into the first he made before this then it is amazing he didn't kill himself then. If you think that you make the bottle safe to cut into by just opening the vale then you shouldn't even be thinking about doing this. He is one lucky man that there are other people willing to do a sometimes thankless job saving idiots from themselves.