A captain who doesn’t understand the difference between a gas leak in a boat or in a car??? Boats have bilges where gas and fumes will collect. A car engine compartment is open so any gas or fumes will get out. Pretty big difference. I use a charcoal magma mounted on the stern, outside the rail... anything happens it can be tilted out so the charcoal Can be dumped in the water. And we have a hose 6’ away. I ve actually practiced an emergency shutdown and dump (after the steaks were cooked) and it s extinguishes and safe in seconds.