Reply #12: Right now... My strobe light is flashing at intermittent intervals.

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For over 30 years I have used black lights, strobe lights, all kinds of props and eerie music to decorate wherever I lived for Halloween. Strobe lights have always flashed at regular intervals, the speed of which you can control by turning a small knob somewhere on it. I have one right now flashing on a skeleton in the window, so that you only see it when the light flashes. After getting the position of the light just right, I turned it all the way down, which I thought turned it off. I just walked through the living room and it flashed, giving me a scare. I adjusted the knob slightly and now it is flashing at irregular intervals - really weird. There must be a scientific explanation, or just that it is a cheapo $6.99 strobe light made in China.
About 10 years ago, I was scaring kids regularly with unnerving music and sounds, lightning and thunder, and glow-in-the-dark makeup on my face. It was all very dark around the front door itself. I would open the door to the kids and all they could see was this green glowing face floating around in the black hallway. Inevitably they would scream and some would run away crying, but they would always be back 30 minutes later to show their friends all the decorations. Whenever there was a lull in the stream of kids, I would go out to the yard to check if everything was still in place and still working properly. Once I opened the front door and stepped onto the dark porch, but in the blackness there was a kid there who suddenly yelled out at me when I stepped out, and gave me the biggest scare I've had in years.