Smoking is bad mmmkay

Being in IT I get an interesting look at how bad smoking really is. Last night I worked on a co-workers computer and his live in daughter smokes cigarettes in the house. Check out the picture, see how the tobacco just cakes on stuff? Your looking at the fan which is directly above the processor. The fan's job is to blow cool air across the processor to keep it cool. Look at all the tobacco dust on that fan. Computers can actually die from the ammount of tobacco dust that cakes on everything.

Just imagine what peoples lungs must look like? They have to look alot worse. Your lungs are getting a direct hit (yes filtered but whatever) of smoke dust and then exhaleing it. This PC fan is getting second hand smoke. I highly doubt the chick exhales the cigarette into the PC's intake fan.

I had to blow this thing out before bringing it into the house, and it created a huge smoke cloud everywhere. After I turned it on still remenants of smoke dust was in there and it made my computer room smell like a bar.

I know smoking is a tough habit to break, believe me there are a few people that I love very much that want to quit but they cant. After seeing pictures like this why do people still start this awful habit?