There’s a doctorate thesis for somebody on why this happens.One thing I like about our town is that we have theaters built for the weekend tourist crowds, and during the week and through most of the winter, they’re pretty deserted, and you can frequently get a private screening. But there’s frequently the person who shows up late, often well into the trailers, and they inevitably, of all the empty seats in the theater, sit a row or two behind you, then proceed to jabber like they hadn’t realized there was a movie going on.  Back me up on this, +Kristine Kathryn Rusch and +Chris York!