Okay you guys, I got this. We buy a bunch of mattresses. Yeah, mattresses. We texturize and paint them, then sell them to 2nd-rate New Jersey contractors. For literally hundreds of dollars. What could go wrong?
Setting aside the obvious explanation that the power cord is attached to something on the other side or below the wall, maybe the wall itself is electrically operated, and it needs to plug into itself to run. Woah. I just got goosebumps.