Actors don't work for you. And when you meet them at the stage door, they're off the clock. That they even stop to sign an autograph or snap a photo is purely a courtesy on their part. You may personally find smoking distasteful, as I do, but it's ridiculous to expect someone who's essentially doing you a favor to act in a manner that you deem appropriate.
"You travel alone because other people are only there to remind you how much that hook hurts that we all bit down on. Wait for that one day we can bite free and get back out there in space where we belong, sail back over water, over skies, into space, the hook finally out of our mouths and we wander back out there in space spawning to other planets never to return hurrah to earth and we'll look back and can't even see these lives here anymore. Only the taste of blood to remind us we ever existed. The earth is small. We're gone. We're dead. We're safe."
-John Guare, Landscape of the Body