Re: Sounds like me to be a good reason....
You'll probably also pick up a surprising amount of nicotine from the salad (not a great deal, but the fact there is any in tomatoes, potatoes, ... was surprising to me).
Take an unfortunate fool, an unregulated mod, a damaged battery, poor maintenance, and mix with a quantity of bad luck, and you'll get something like this happening. Given the number of these sorts of accidents, the number of people who vape, and the number of house fires caused by smoking, and it's still a good bet to switch from smoking to vaping. Just don't go down the mech and hybrid routes without knowing what you're doing.