I loved the cone of silence, that was great.

I just remember when I went to Vegas a couple years ago I was amazed at how smoke free many of the large casinos were when half the people were smoking. They have some killer ventilation systems. Seems like zoning laws could be setup so that if you wanted to allow smoking you would have to install ventilation to remove the smoke like the casinos do. In the long run it might even help their business.