smart house

We’ve been having trouble lately with our garage door; it opens itself back up whenever we close it. My roommate left about five minutes ago and didn’t notice it had gone back up. I was made aware of the fact when the smoke detector in the garage started beeping and I went to see why. There was no fire, and when I closed the garage door, the smoke detector stopped. Apparently, my house is smarter than I thought. Or haunted. Take your pick.