Electronic cigarettes.

I added electronic cigarettes - two kinds.
I think/hope I did everything correctly. Please let me know if I should change anything, as I'm still "getting to know" the CDDA source code. It works as I think it should in all the tests I've done.

The one called just "electronic cigarette" is a disposable - you can use it until it's empty, but once it's empty it's useless.
The other one, called "advanced electronic cigarette" can be refilled with batteries. It also need a bottle of nicotine liquid to function. 
These provide the same addiction as regular cigarettes, but without the negative health impact. This is in line with the research that has been done on this matter so far. (Actually, many people experience electronic cigarettes to be less addictive than regular cigarettes, but I don't think there are scientific studies confirming this as of yet.)
Using an electronic cigarette makes you slightly more thirsty than regular cigarettes (most or all people who "vape" experience this).
Also, they are quite rare.