This kid is a genius.  I like the way he thinks.  His sister and her friends are playing with a Ouija Board.  What he did is simple but very, very effective.

I love to scare and make people scream.  I do it at work and home, it makes me happy.  The victims, not so much.  When people scream in movies, it makes me equally happy.  The kid in this video...makes me happy.

The girls are playing a Ouija Board on the first level of the house, so he goes into the basement and finds the electrical box and starts turning the lights off and on.  Listen closely, in the video, the girls scream each time.  Brilliant!