Bad Habits

The one thing is to accept people are different, like different things, some good, some bad, however, manners are manners - WHY ARE SMOKERS SUCH PIGS? Time and time I see someone toss their butts out the window of their car or while walking, even see then open the car door at a red light and empty their ash trays? Holy crap, when did this become acceptable and why? I don't get it... you can't spit on the side walk, throw trash, then why does this terrible habit get special privileges...
The second bad habit is not really a habit I just want to comment on it...I am dog owner, actually have 3, they all poop. I go to the dollar store and get the small bags to collect their messes at the park and during walks... my question is ' WHY DO PEOPLE GO TO THE TROUBLE OF COLLECTING THE POOP IN A BAG AND THEN TOSS THE BAG ON THE STREET OR LEAVE IT ON THE GRASS? This stuff makes me crazy.