Seems as though stealth vaping would be safer since the PV would be in the hand the whole timecant forget those people who 'stealth vape' on planes though. It's difficult to enforce rules when people break em.
Any overheating would be noticed Before it got to the point of causing a fire....Just my thoughts....
youd think theyd throw the mod or bring it away from their face before the inevitable kaboom. most recently being discussed is also a 'malfunction' of a mod causing it to explode. I also remember reading some threads about a new mod that was released to the public, but malfunctioned and was recalled i think, because it was causing fires within the mod. Which mods should airlines ban in that case? Just certain ones? or all of them?