Latest post of the previous page:I'm not talking about explosion, but ionization of the liquified element that in normal conditions is in gas state.
A plasma that has to be contained inside living organism.
It's generally bad idea, 'cause we have two problems that living tissue has to deal with simultaneously - high temperature and ESD - electrostatic discharge.
Though high temperature we can rule-out as a factor (cause dragon's body should be naturally heat-resistant), the ESD wil cause uncontrollable spasms while breathing fire. (not to mention all the damage to nervous system, and blood electrolysis).
After discharge it takes quite some time to bildup a charge anew, and dragon's breath can't be that limited.