Jets overhead prepping for opening day at the ball park.
Have you ever heard an entire car lot of car alarms go off at once?
A low fly-over by a fast-moving jet will do that.
Brainwaves of Sken
The why-is-its of a video editor, photographer, designer, convention-runner.
Howitzer shells going off north of my location on base, would often cause a all the really sensitive car alarms to go off, within earshot.