Good movie...but did anyone notice this goof-up...

Rating: 8/10 (20 February 2009)

Hi guys,
I liked the film a lot even though there are many supposed 'plotholes'. But I just wanted to ask you guys if anybody had seen an obvious goof in the film...read on...
When Graham(mel) and joaquin are planning to catch the wolfington brothers near their front door and are ready to go, the light on the outside of their house switches on by itself. It was so weird to see that.
Has anybody else seen this?
But really it was a nice movie...I saw it 6 months after it was released, liked it back then and still like it. Shyamalan is a good director but I think he must concentrate on his story a lot and must filter out any illogical things in the plot. But the way he paced the film was really good.