On a serious note, get the cameras out and WATCH!
There is a problem. You can not see inside their house. All the windows are covered and the doors are covered as well. So unless someone owns an infrared camera we have no idea what is going on.
We just know that 10 cars on a Monday at 2:00 PM CST and 13 cars on a Tuesday night is not normal. We have NEVER seen this since they moved in. And the fact that my dad's plant manager who lives in another town adjacent to us saw the same activity in his neighborhood has me really concerned.
bfl