[leetcrew]

I'm not sure that many smokers still believe butts are biodegradable, but I could certainly be wrong.

I suspect (as an exsmoker) that it's more about the availability of cigarette receptacles. most smokers I know are willing to dispose of butts when there's a convenient place to put them, but are not willing to carry them around until they find a suitable place. used cigarettes make your clothes smell a lot worse that merely smoking outside.