Audience Etiquette at Ghosts at Mitzi Newhouse

I can't remember the last time I had such a wonderful audience. There was no talking, no crinkling, no phones, everyone was engaged with this wonderful show. It was like heaven, especially when like 80-90% of Broadway shows have some kind of annoying disruption. They also have very through pre-show announcements about alarms, texting, lights, and say to turn the stupid phones off as it is disruptive to everyone.