Reply #6: Well, try this:

[The Straight Story]

Go into a garage, close the door, and chain smoke for 2 hours.

Then go into a garage, turn on the car, and stand there for 2 hours.

Which one will do more harm? And won't both stick to clothes?

Which one is spewed out at a rate that is harming the earth and the people on it?

When those people decide to stop harming me, the earth, etc - then they will have room to complain about '3rd hand' smoke.