User blog comment:Lvdoomien/Opening a Fruit Stand/@comment-4025092-20141203030754/@comment-4080028-20141204011029

Seems I don't have much of a plan for either of those situations. I'm not a physics or mathematician expert, so I had no idea ethanol would do either of those things when set on fire.

My best bet would be to try and rely on One Piece logic, and just handpick whatever laws of physics seem most desirable to me. Given Logia users can regenerate from whatever damage is inflicted on them, and the fact that Aokiji and Akainu both managed a 10 day long duel, thus implying their powers may be evenly matched to some degree (Kuzan's ice freezing Sakazuki's magma, and Sakazuki's magma melting Kuzan's ice. Despite the fact one would assume the Magu Magu no Mi would have the absolute advantage, since it could instantly melt ice.)

However, I also doubt I could fully get away with all this too, since even One Piece obeys some form of common sense. If worse comes to worse though, and Liger would end up killing himself in the process, I assume he'd try and smother the flames on him, douse it in water (or some other liquid that'd be compatible with alcohol,) or maybe somehow shoot out geysers and jets of ethanol from his body, simply to launch the fire off of him.