Isnt there supposed to be a Conspiracy Theory about Black Helicopters?

Becouse yesterday i was in my cousins in Clubmoor, I was sitting in my car waiting for my auntie when i heard an EXPLOSION sound, Later a Black Chopper was hovering over the area with its spotlight still on in daylight, I also heard a voice from its speaker.



I seen the same chopper today this afternoon

http://zapatopi.net/blackhelicopters/
http://en.wikipedia.org/wiki/Black_helicopters

It looks a lot like this one but painted black.