You're absolutely right and those are somewhat bothersome. Also there are some units, the bigger ones I've noticed, that have the ability to create a thick dens

You're absolutely right and those are somewhat bothersome. Also there are some units, the bigger ones I've noticed, that have the ability to create a thick dense cloud of vapor as if an invoked spirit is about to materialize into Alladin. These are not cool at all. At the same time i saw small electronic cigarettes that people use discretely and I think that's a big win to the old nasty and stinky analog cigarettes.