I was listening to my stream in the background while doing other chores as I usually do, and overheard what sounded at first like a nasty verbal confrontation on air. I stopped to listen some more and noticed it sounded unreal. But as I scrambled for my scanner to find out which of the frequencies it was on, it had already ended. So I downloaded the segment from the archive and isolated it. Turns out it was a soundboard being used of Arnold Schwarzenegger's movie career. The whole thing lasted about a minute, and it was almost like the person behind it was interacting with someone, ergo a pilot or a controller.
So here's what I do know about it: It was late night, traffic was pretty much dead and tower had long been closed. I had opened the San Marcos and Lockhart UNICOM channels for a little extra listening pleasure. The New Braunfels Delivery frequency becomes an active sector of San Antonio Approach at night. The prankster had to be using an aviation radio or transceiver.
So, was this prankster using a quiet small field UNICOM frequency, or was he interfering with commercial traffic on San Antonio Approach? The thing about that is I can pick up the Approach controller working that frequency, but I can't hear his pilots. I never heard him say anything, so I don't think it was that. Either way, this is an interesting little sound clip to listen to on dull nights. Anybody else ever have this problem? I feel so vigilant.