[Dangerious P. Cats]

The problem with anythng fire is that it poses as much a risk to the enmy ship as it does to your own, if not more. On age of sail ship both fire and powder were practically fortified from the rest of the ship because of the danger it posed. Likewise when it's being used you need to ensure that it's protected enough that being pelted with arrows/shot/whatever doesnt set your own ship on fire (things become increadily difficult when you have people trying to hurt you).