I went to bed at 0030 last Friday night. At about 0200 I heard my garage door open. My first thought was someone broke into my car and used the garage door opener to get into the house. I jumped up grabbed my G23 from the safe, checked my son's room on the way to the inner garage door (in case he was trying to sneak out-12 yr old), and stopped. I figured if anyone was in the garage they would come through the only door to the house from the garage. I backed up about 20 ft from the door and kept the G23 pointed at the door. I stayed there for about a minute and then decided to check the garage (I'm not a handyman type so I don't have anything in the garage worth stealing, in fact, I wish someone would take some of the junk in there). I cleared both sides of the doorway and walked in to the garage. I cleared the car, the garage, my car, and the perimeter of the house. Minus a few cars driving by watching me walk around my house in shorts and in the cold weather, all was good. This was the first time anything happened to me like that here so I was pretty happy with the way I reacted. My wife always gives me crap about CCW and having a gun in the house but after last week she was happy. Never did find out what it was that opened up the door but I changed the freq and all seems well. She said the garage door did that a few times while I was deployed last year. Who knows.