...what.. are you using your cell phone in a movie theater atm?

"Movie theaters and other performance arenas would love to block calls. I favor clubbing phone-using theater patrons as if they were baby seals." LOL... my wife and I use that reference often, which we've boiled down over the years to where all either of us need say is "bonk-bonk!" and the point has been made.
10 bonus points for anyone knowing the common cultural origin of our use of "bonk-bonk!"
Now I'll go one further: club anyone who's conversation is intelligible to anyone other than the 2 parties on the call...