This thread reminds me of a flight long ago. While doing the 'safety dance' 2 business pax chatted away loudly and ingored my jewels of safety wisdom. They laughingly asked me after the demo if it bothered me that they ignored the demo. I told them'not at all, I know how to get out of this aircraft with my eyes closed'. Silence...a moment later they got out their safety cards as did several pax within earshot.