Here in the DC area we have a movie theater that is right beside Ronald Regan National Airport, in an old train yard. (Potomac Yards)
Well not really right beside it... but when I was watching a movie there a few years ago.. during a nice quite scene..... There went the airplane... from right to left through the screen.... Well not actually... It was a mental picture that my mind created hearing the plane land. Now normally this is not a problem, at this theater, since most movies have enough sound to cover outside noise.
It was just strange.
The point is... What happens when you are sitting watching a move and the neighbors, kids, friend comes over with a baffle in the muffler and it sounds like a dump truck trying to stop quickly at an intersection, from their little CRX??
Not a sermon... Just a thought. (those in DC area know this commercial)